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keysight technologies e4980a precision lcr meter 20 hz to 2 mhz e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz data sheet fully compliant to lxi class c specifcation
all specifcations apply to the conditions of a 0 to 55 c temperature range, unless otherwise stated, and 30 minutes after the instrument has been turned on. specifcations (spec.): warranted performance. specifcations include guardbands to account for the expected statistical performance distribution, measurement uncertainties, and changes in performance due to environmental conditions. supplemental information is provided as information that is useful in operating the instrument, but is not covered by the product warranty. this information is classifed as either typical or nominal. typical (typ.): expected performance of an average unit without taking guardbands into account. nominal (nom.): a general descriptive term that does not imply a level of performance. defnitions how to use tables e4980a/e4980al when measurement conditions fall under multiple categories in a table, apply the best value. for example, basic accuracy ab is 0.10% under the following conditions; measurement time mode short test frequency 125 hz test signal voltage 0.3 vrms the e4980a is the model number of the 20 hz to 2 mhz frequency range lcr meter. the e4980al is the model number of the 20 hz to 300 khz, 500 khz or 1 mhz frequency range lcr meter. see the e4980a/e4980al confguration guide (5989-8321en) for more details. frequency range model number and option 20 hz to 2 mhz e4980a 20 hz to 1 mhz e4980al-102 20 hz to 500 khz e4980al-052 20 hz to 300 khz e4980al-032 02 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
measurement functions measurement parameters C cp-d, cp-q, cp-g, cp-rp C cs-d, cs-q, cs-rs C lp-d, lp-q, lp-g, lp-rp, lp-rdc C ls-d, ls-q, ls-rs, ls-rdc C r-x C z- d, z- r C g-b C y- d, y- r C vdc-idc 1 defnitions cp capacitance value measured with parallel-equivalent circuit model cs capacitance value measured with series-equivalent circuit model lp inductance value measured with parallel-equivalent circuit model ls inductance value measured with series-equivalent circuit model d dissipation factor q quality factor (inverse of d) g equivalent parallel conductance measured with parallel-equivalent circuit model rp equivalent parallel resistance measured with parallel-equivalent circuit model rs equivalent series resistance measured with series-equivalent circuit model rdc direct-current resistance r resistance x reactance z impedance y admittance q d phase angle of impedance/admittance (degree) q r phase angle of impedance/admittance (radian) b susceptance vdc direct-current voltage idc direct-current electricity deviation measurement function: deviation from reference value and percentage of deviation from reference value can be output as the result. equivalent circuits for measurement: parallel, series impedance range selection: auto (auto range mode), manual (hold range mode) trigger mode: internal trigger (int), manual trigger (man), external trigger (ext), gpib trigger (bus) basic specifcations 1. E4980A-001 is required. 03 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
table 1. trigger delay time range 0 s - 999 s resolution 100 s (0 s - 100 s) 1 ms (100 s - 999 s) table 2. step delay time range 0 s - 999 s resolution 100 s (0 s - 100 s) 1 ms (100 s - 999 s) measurement terminal: four-terminal pair test cable length: 0 m, 1 m, 2 m, 4 m measurement time modes: short mode, medium mode, long mode. table 3. averaging range 1 - 256 measurements resolution 1 test signal table 4. test frequencies test frequencies 20 hz - 2 mhz (e4980a) 20 hz - 1 mhz (e4980al-102) 20 hz - 500 khz (e4980al-052) 20 hz - 300 khz (e4980al-032) resolution 0.01 hz (20 hz - 99.99 hz) 0.1 hz (100 hz - 999.9 hz) 1 hz (1 khz - 9.999 khz) 10 hz (10 khz - 99.99 khz) 100 hz (100 khz - 999.9 khz) 1 khz (1 mhz - 2 mhz) measurement accuracy 0.01% table 5. test signal modes normal program selected voltage or current at the measurement terminals when they are opened or short-circuited, respectively. constant maintains selected voltage or current at the device under test (dut) independently of changes in impedance of dut. 04 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
signal level table 6. test signal voltage range 0 vrms - 2.0 vrms resolution 100 vrms (0 vrms - 0.2 vrms) 200 vrms (0.2 vrms - 0.5 vrms) 500 vrms (0.5 vrms - 1 vrms) 1 mvrms (1 vrms - 2 vrms) accuracy normal (10% + 1 mvrms) test frequency 1 mhz: spec. test frequency > 1 mhz: typ. constant 1 (6% + 1 mvrms) test frequency 1 mhz: spec. test frequency > 1 mhz: typ. table 7. test signal current range 0 arms - 20 marms resolution 1 arms (0 arms - 2 marms) 2 arms (2 marms - 5 marms) 5 arms (5 marms - 10 marms) 10 arms (10 marms - 20 marms) accuracy normal (10% + 10 arms) test frequency 1 mhz: spec. test frequency > 1 mhz: typ. constant 1 (6% + 10 arms) test frequency < = 1 mhz: spec. test frequency > 1 mhz: typ. output impedance: 100 (nominal) test signal level monitor function C test signal voltage and test signal current can be monitored. C level monitor accuracy: table 8. test signal voltage monitor accuracy (vac) test signal voltage 2 test frequency specifcation 5 mvrms - 2 vrms 1 mhz (3% of reading value + 0.5 mvrms) > 1 mhz (6% of reading value + 1 mvrms) table 9. test signal current monitor accuracy (lac) test signal current 2 test frequency specifcation 50 arms - 20 marms 1 mhz > 1 mhz (3% of reading value + 5 arms) (6% of reading value + 10 arms) 1. when auto level control function is on. 2. this is not an output value but rather a displayed test signal level. 05 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
measurement display ranges table 10 shows the range of measured value that can be displayed on the screen. for the effective measurement ranges, refer to figure 1 impedance measurement accuracy example. table 10. allowable display ranges for measured values parameter measurement display range cs, cp 1.000000 af to 999.9999 ef ls, lp 1.000000 ah to 999.9999 eh d 0.000001 to 9.999999 q 0.01 to 99999.99 r, rs, rp, x, z, rdc dqwr(q g, b, y 1.000000 as to 999.9999 es vdc 1.000000 av to 999.9999 ev idc 1.000000 aa to 999.9999 ea r 1.000000 arad to 3.141593 rad d 0.0001 deg to 180.0000 deg h 0.0001 % to 999.9999 % a: 1 x 10 -18 , e: 1 x 10 18 06 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
absolute measurement accuracy the following equations are used to calculate absolute accuracy. absolute accuracy aa of |z|, |y|, l, c, r, x, g, b (l, c, x, and b accuracies apply when dx 0.1, r and g accuracies apply when qx 0.1 ) equation 1. aa = ae + acal aa absolute accuracy (% of reading value) ae relative accuracy (% of reading value) acal calibration accuracy (%) where g accuracy is applied only to g-b measurements. d accuracy (when dx 0.1) equation 2. de + cal dx measured d value de relative accuracy of d cal calibration accuracy of (radian) q accuracy (when qx da < 1) equation 3. (qx2 da) (1 qx da) qx measured q value da absolute accuracy of d accuracy equation 4. e + cal e relative accuracy of (degree) cal calibration accuracy of (degree) 07 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
g accuracy (when dx 0.1) equation 5. bx + da (s) 1 bx = 2fcx = 2flx dx measured d value bx measured b value (s) da absolute accuracy of d f test frequency (hz) cx measured c value (f) lx measured l value (h) where the accuracy of g is applied to cp-g measurements. absolute accuracy of rp (when dx 0.1) equation 6. rpx da ( ? ) dx da rpx measured rp value () dx measured d value da absolute accuracy of d absolute accuracy of rs (when dx 0.1) equation 7. xx da (?) 1 xx = = 2flx 2fcx dx measured d value xx measured x value () da absolute accuracy of d f test frequency (hz) cx measured c value (f) lx measured l value (h) 08 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
relative accuracy relative accuracy includes stability, temperature coeffcient, linearity, repeatability, and calibration interpolation error. relative accuracy is specifed when all of the following conditions are satisfed: C warm-up time: 30 minutes C test cable length: 0 m, 1 m, 2 m, or 4 m (keysight technologies, inc. 16048a/d/e) C a signal source overload warning does not appear. when the test signal current exceeds a value in table 11 below, a signal source overload warning appears. table 11. test signal voltage test frequency condition 1 2 vrms C C > 2 vrms 1 mhz the smaller value of either 110 ma or 130 ma - 0.0015 vac (fm / 1 mhz) (l_cable + 0.5) > 1 mhz 70 ma - 0.0015 vac (fm / 1 mhz) (l_cable + 0.5) vac [v] test signal voltage fm [hz] test frequency l_cable [m] cable length C open and short corrections have been performed. C bias current isolation: off C the dc bias current does not exceed a set value within each range of the dc bias current C the optimum impedance range is selected by matching the impedance of dut to the effective measuring range. C under an ac magnetic feld, the following equation is applied to the measurement accuracy. a x (1 + b x ( 2 + 0.5 / vs)) where a: absolute accuracy b: magnetic fux density [gauss] vs: test signal voltage level [volts] |z|, |y|, l, c, r, x, g, and b accuracy (l, c, x, and b accuracies apply when dx 0.1, r and g accuracies apply qx 0.1) relative accuracy ae is given as: zm impedance of dut ab basic accuracy zs short offset yo open offset kt temperature coeffcient d accuracy d accuracy de is given as C when dx 0.1 dx measured d value ae relative accuracies of |z|, |y|, l, c, r, x, g, and b C when dx > 0.1, multiply de by (1 + dx) 1. when the calculation result is a negative value, 0 a is applied. 09 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
q accuracy (when q x de < 1) q accuracy qe is given as: equation 10. (qx 2 de) q e = (1 qx de) qx measured q value de relative d accuracy accuracy accuracy e is given as: equation 11. 180 ae e = ( d e g ) 100 ae relative accuracies of |z|, |y|, l, c, r, x, g, and b g accuracy (when dx 0.1) g accuracy ge is given as: equation 12. ge = bx de (s) 1 bx = 2fcx = 2flx ge relative g accuracy dx measured d value bx measured b value de relative d accuracy f test frequency (hz) cx measured c value (f) lx measured l value (h) rp accuracy (when dx 0.1) rp accuracy rpe is given as: equation 13. rpx de (?) r p e = dx de rpe relative rp accuracy rpx measured rp value () dx measured d value de relative d accuracy rs accuracy (when dx 0.1) rs accuracy rse is given as: equation 14. rse = xx de (?) 1 xx = C = 2flx 2fcx rse relative rs accuracy dx measured d value xx measured x value () de relative d accuracy f test frequency (hz) cx measured c value (f) lx measured l value (h) 10 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
example of c-d accuracy calculation measurement conditions test frequency: 1 khz measured c value: 100 nf test signal voltage: 1 vrms measurement time mode: medium measurement temperature: 23 c ab = 0.05% |zm| = 1 / (2 1 103 100 10-9) = 1590 zs = 0.6 m (1 + 0.400/1) (1 + (1000/1000) = 1.68 m yo = 0.5 ns (1 + 0.100/1) (1 + (100/1000) = 0.72 ns c accuracy: ae = [0.05 + 1.68 m/1590 100 + 0.72 n 1590 100] 1 = 0.05% d accuracy: de = 0.05/100 = 0.0005 basic accuracy basic accuracy ab is given below. table 12. measurement time mode = short test frequency [hz] test signal voltage 5 mvrms - 50 mvrms 50 mvrms - 0.3 vrms 0.3 vrms - 1 vrms 1 vrms - 10 vrms 10 vrms - 20 vrms 20 - 125 (0.6%) (50 mvrms/vs) 0.60% 0.30% 0.30% 0.30% 125 - 1 m (0.2%) (50 mvrms/vs) 0.20% 0.10% 0.15% 0.15% 1 m - 2 m (0.4%) (50 mvrms/vs) 0.40% 0.20% 0.30% 0.30% table 13. measurement time mode = med, long test frequency [hz] test signal voltage 5 mvrms - 50 mvrms 50 mvrms - 0.3 vrms 0.3 vrms - 1 vrms 1 vrms - 10 vrms 10 vrms - 20 vrms 20 - 100 (0.25%) (30 mvrms/vs) 0.25% 0.10% 0.15% 0.15% 100 - 1 m (0.1%) (30 mvrms/vs) 0.10% 0.05% 0.10% 0.15% 1 m - 2 m (0.2%) (30 mvrms/vs) 0.20% 0.10% 0.20% 0.30% vs [vrms] test signal voltage 11 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
effect by impedance of dut table 14. for impedance of dut below 30 , the following value is added. test frequency [hz] impedance of dut 1.08 |zx| < 30 |zx| < 1.08 20 - 1 m 0.05% 0.10% 1 m - 2 m 0.10% 0.20% table 15. for impedance of dut over 9.2 k , the following value is added. test frequency [hz] impedance of dut 9.2 k < |zx| 92 k 92 k < |zx| 10 k - 100 k 0% 0.05% 100 k - 1 m 0.05% 0.05% 1 m - 2 m 0.10% 0.10% effect of cable extension when the cable is extended, the following element is added per one meter. 0.015 % (fm/1 mhz) 2 (l_cable) 2 fm [hz] test frequency l_cable [m] cable length 12 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
note the open offset may become three times greater in the ranges of 40 to 70 khz and 80 to 100 khz due to residual response. short offset zs table 16. impedance of dut > 1.08 test frequency [hz] measurement time mode short med, long 20 - 2 m 2.5 m (1 + 0.400/vs) (1 + (1000/fm)) 0.6 m (1 + 0.400/vs) (1 + (1000/fm)) table 17. impedance of dut 1.08 test frequency [hz] measurement time mode short med, long 20 - 2 m 1 m (1 + 1/vs) (1 + (1000/fm)) 0.2 m (1 + 1/vs) (1 + (1000/fm)) vs [vrms] test signal voltage fm [hz] test frequency effect of cable extension (short offset) table 18. when the cable is extended, the following value is added to zs (independent of the measurement time mode). test frequency [hz] cable length 0 m 1 m 2 m 4 m 20 - 1 m 0 0.25 m 0.5 m 1 m 1 m - 2 m 0 1 m 2 m 4 m open offset yo table 19. test signal voltage 2.0 vrms test frequency [hz] measurement time mode short med, long 20 - 100 k 2 ns (1 + 0.100/vs) (1 + (100/fm)) 0.5 ns (1 + 0.100/vs) (1 + (100/fm)) 100 k - 1 m 20 ns (1 + 0.100/vs) 5 ns (1 + 0.100/vs) 1 m - 2 m 40 ns (1 + 0.100/vs) 10 ns (1 + 0.100/vs) table 20. test signal voltage > 2.0 vrms test frequency [hz] measurement time mode short med, long 20 - 100 k 2 ns (1 + 2/vs) (1 + (100/fm)) 0.5 ns (1 + 2/vs) (1 + (100/fm)) 100 k - 1 m 20 ns (1 + 2/vs) 5 ns (1 + 2/vs) 1 m - 2 m 40 ns (1 + 2/vs) 10 ns (1 + 2/vs) vs [vrms] test signal voltage fm [hz] test frequency 13 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
effect of cable length table 21. when the cable is extended, multiply yo by the following factor. test frequency [hz] cable length 0 m 1 m 2 m 4 m 100 - 100 k 1 1 + 5 fm/1 mhz 1 + 10 fm/1 mhz 1 + 20 fm/1 mhz 100 k - 1 m 1 1 + 0.5 fm/1 mhz 1 + 1 fm/1 mhz 1 + 2 fm/1 mhz 1 m - 2 m 1 1 + 1 fm/1 mhz 1 + 2 fm/1 mhz 1 + 4 fm/1 mhz fm [hz] test frequency temperature factor kt table 22. the temperature factor kt is given below. temperature [c] kt 0 - 18 4 18 - 28 1 28 - 55 4 14 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
calibration accuracy acal calibration accuracy acal is given below. for impedance of dut on the boundary line, apply the smaller value. table 23. impedance range = 0.1, 1, 10 test frequency [hz] 20 - 1 k 1 k - 10 k 10 k -100 k 100 k - 300 k 300 k - 1 m 1 m - 2 m |z| [%] 0.03 0.05 0.05 0.05 + 5 10 -5 fm 0.05 + 5 10 -5 fm 0.1 + 1 10 -4 fm [radian] 1 10 -4 2 10 -4 3 10 -4 3 10 -4 + 2 10-7 fm 3 10 -4 + 2 10-7 fm 6 10 -4 + 4 10-7 fm table 24. impedance range = 100 test frequency [hz] 20 - 1 k 1 k - 10 k 10 k -100 k 100 k - 300 k 300 k - 1 m 1 m - 2 m |z| [%] 0.03 0.05 0.05 0.05 + 5 10 -5 fm 0.05 + 5 10 -5 fm 0.1 + 1 10 -4 fm [radian] 1 10 -4 2 10 -4 3 10 -4 3 10 -4 3 10 -4 6 10 -4 table 25. impedance range = 300, 1 k test frequency [hz] 20 - 1 k 1 k - 10 k 10 k -100 k 100 k - 300 k 300 k - 1 m 1 m - 2 m |z| [%] 0.03 0.03 0.05 0.05 0.05 0.1 [radian] 1 10 -4 1 10 -4 3 10 -4 3 10 -4 3 10 -4 6 10 -4 table 26. impedance range = 3 k, 10 k test frequency [hz] 20 - 1 k 1 k - 10 k 10 k -100 k 100 k - 300 k 300 k - 1 m 1 m - 2 m |z| [%] 0.03 + 1 10 -4 fm 0.03 + 1 10 -4 fm 0.03 + 1 10 -4 fm 0.03 + 1 10 -4 fm 0.03 + 1 10 -4 fm 0.06 + 2 10 -4 fm [radian] (100 + 2.5 fm) 10 -6 (100 + 2.5 fm) 10 -6 (100 + 2.5 fm) 10 -6 (100 + 2.5 fm) 10 -6 (100 + 2.5 fm) 10 -6 (200 + 5 fm) 10 -6 table 27. impedance range = 30 k, 100 k test frequency [hz] 20 - 1 k 1 k - 10 k 10 k -100 k 100 k - 300 k 300 k - 1 m 1 m - 2 m |z| [%] 0.03 + 1 10 -3 fm 0.03 + 1 10 -3 fm 0.03 + 1 10 -3 fm 0.03 + 1 10 -3 fm 0.03 + 1 10 -4 fm 0.06 + 2 10 -4 fm [radian] (100 + 20 fm) 10 -6 (100 + 20 fm) 10 -6 (100 + 20 fm) 10 -6 (100 + 20 fm) 10 -6 (100 + 2.5 fm) 10 -6 (200 + 5 fm) 10 -6 fm[khz] test frequency 15 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
measurement accuracy the impedance measurement calculation example below is the result of absolute measurement accuracy. figure 1. impedance measurement accuracy (test signal voltage = 1 vrms, cable length=0 m, measurement time mode = med) 100 10 10 1 100m 10m 1m 100 10 1 100n 10n 1n 10m 100m 1 10 100 1k 10k 100k 1m 10m 100m 1m 1g 20 100 1k 10k 100k 1m 2m 10pf 1nf 100pf 10nf 100nf 1f 10f 100f 1mf 10mf 100mf 1f 10nh 1nh 100ph 100nh 1h 10h 100h 1mh 10mh 100mh 1h 10h 100h 1pf 100ff 10ff 1ff 100af 1kh 10kh 100kh 1mh 0.3% 0.3% 0.1% 0.1% 1.0% 10.0% 1.0% 10.0% [ ] [ s ] frequency [ hz ] c l 16 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
compensation function table 28. the e4980a provides three types of compensation functions: open compensation, short compensation, and load compensation. type of compensation description open compensation compensates errors caused by the stray admittance (c, g) of the test fxture. short compensation compensates errors caused by the residual impedance (l, r) of the test fxture. load compensation compensates errors between the actual measured value and a known standard value under the measurement conditions desired by the user. list sweep points: there is a maximum of 201 points. first sweep parameter (primary parameter): test frequency, test signal voltage, test signal current, test signal voltage of dc bias signal, test signal current of dc bias signal, dc source voltage. second sweep parameter (secondary parameter): none, impedance range, test frequency, test signal voltage, test signal current, test signal voltage of dc bias signal, test signal current of dc bias signal, dc source voltage trigger mode sequential mode: when the e4980a is triggered once, the device is measured at all sweep points. /eom/index is output only once. step mode: the sweep point is incremented each time the e4980a is triggered. /eom/index is output at each point, but the result of the comparator function of the list sweep is available only after the last /eom is output. note a parameter selected for one of the two parameters cannot be selected for the other parameter. it is not possible to set up a combination of test signal voltage and test signal current or one of test signal voltage of dc bias signal and test signal current of dc bias. the secondary parameter can be set only with scpi commands. 17 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
comparator function of list sweep: the comparator function enables setting one pair of lower and upper limits for each measurement point. you can select from: judge with the frst sweep parameter/judge with the second parameter/not used for each pair of limits. time stamp function: in the sequential mode, it is possible to record the measurement starting time at each measurement point by defning the time when fw detects a trigger as 0 and obtain it later with the scpi command. comparator function bin sort: the primary parameter can be sorted into 9 bins, out_of_bins, aux_bin, and low_c_reject. the secondary parameter can be sorted into high, in, and low. the sequential mode and tolerance mode can be selected as the sorting mode. limit setup: absolute value, deviation value, and % deviation value can be used for setup. bin count: countable from 0 to 999999. dc bias signal table 29. test signal voltage range 0 v to +2 v resolution 0 v / 1.5 v / 2 v only accuracy 0.1% + 2 mv (23 c 5 c) (0.1% + 2 mv) 4 (0 to 18 c or 28 to 55 c) output impedance: 100 (nominal) measurement assistance functions data buffer function: up to 201 measurement results can be read out in a batch. save/recall function: C up to 10 setup conditions can be written to/read from the built-in non-volatile memory. C up to 10 setup conditions can be written to/read from the usb memory. C auto recall function can be performed when the setting conditions are written to register 10 of the usb memory. key lock function: the front panel keys can be locked. gpib: 24-pin d-sub (type d-24), female; complies with ieee488.1, 2 and scpi usb host port: universal serial bus jack, type-a (4 contact positions, contact 1 is on your left), female (for connection to usb memory only). usb interface port: universal serial bus jack, type mini-b (4 contact positions); complies with usbtmc-usb488 and usb 2.0; female; for connection to the external controller. usbtmc: abbreviation for usb test & measurement class lan: 10/100 baset ethernet, 8 pins (two speed options) lxi compliance: class c (only applies to units with frmware revision a.02.00 or later) note the following usb memory can be used. complies with usb 1.1; mass storage class, fat16/fat32 format; maximum consumption current is below 500 ma. recommended usb memory: 4 gb usb flash memory (keysight pn 1819-0637). use the recommended usb memory device exclusively for the e4980a, otherwise, previously saved data may be cleared. if you use a usb memory other than the recommended device, data may not be saved or recalled normally. keysight will not be responsible for data loss in the usb memory caused by using the e4980a. 18 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
frequency options e4980a 20 hz to 2 mhz e4980al-032 20 hz to 300 khz e4980al-052 20 hz to 500 khz e4980al-102 20 hz to 1 mhz table 30. installable options options e4980a e4980al power and dc bias enhancement (001) installable not installable bias current interface (002) installable not installable entry model (005) installable not installable standard model (007) installable not installable dcr measurement (200) installable 1 not installable 2 handler interface (201) installable not installable scanner interface (301) installable not installable interface options option 002 (bias current interface) adds a digital interface to allow the e4980a to control the 42841as bias current source. option 201 (handler interface) adds handler interface. option 301 (scanner interface) adds scanner interface. option 710 (no interface) an option with no interface. up to 2 interface options can be installed in the interface connector on the rear panel. when no interface is installed, two of the option 710 are installed. when one interface is installed, the option number of its interface and one option 710 are installed. other options option 001 (power and dc bias enhancement) increases test signal voltage and adds the variable dc bias voltage. option 005 (entry model) low-priced option that requires a longer measurement time. the level of measurement accuracy is the same as the standard. option 007 (standard model) upgrades the entry model to the standard. option 200 (dcr measurement) adds dcr measurement 1. mandatory option 2. dcr measurement function is equipped by default. note option 007 can be installed only in the e4980a with option 005. note e4980a-200/001 and e4980al-032/052/102 supports dcr measurement function. options note option xxx is described as e4980a-xxx in the order information 19 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
power and dc bias enhancement specifcation increases test signal voltage and adds the variable dc bias voltage function. the vdc-idc measurement function is available when the option 001 is installed. measurement parameters the following parameters can be used. C lp-rdc C ls-rdc C vdc-idc where rdc direct-current resistance (dcr) vdc direct-current voltage idc direct-current electricity test signal signal level table 31. test signal voltage range 0 vrms to 20 vrms (test frequency 1 mhz) 0 vrms to 15 vrms (test frequency > 1 mhz) resolution 100 vrms (0 vrms - 0.2 vrms) 200 vrms (0.2 vrms - 0.5 vrms) 500 vrms (0.5 vrms - 1 vrms) 1 mvrms (1 vrms - 2 vrms) 2 mvrms (2 vrms - 5 vrms) 5 mvrms (5 vrms - 10 vrms) 10 mvrms (10 vrms - 20 vrms) setup accuracy normal (10% + 1 mvrms) (test signal voltage 2 vrms) (test frequency 1 mhz : spec., test frequency > 1 mhz : typ.) (10% + 10 mvrms) (test frequency 300 khz, test signal voltage > 2 vrms) (spec.) (15% + 20 mvrms) (test frequency > 300 khz, test signal voltage > 2 vrms) (test frequency 1 mhz : spec., test frequency > 1 mhz : typ.) constant 1 (6% + 1 mvrms) (test signal voltage 2 vrms) (test frequency 1 mhz : spec., test frequency > 1 mhz : typ.) (6% + 10 mvrms) (test frequency 300 khz, test signal voltage > 2 vrms) (spec.) (12% + 20 mvrms) (test frequency > 300 khz, test signal voltage > 2 vrms) (test frequency 1 mhz : spec., test frequency > 1 mhz : typ.) 1. when auto level control function is on. 20 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
table 32. test signal current range 0 arms - 100 marms resolution 1 arms (0 arms - 2 marms) 2 arms (2 marms - 5 marms) 5 arms (5 marms - 10 marms) 10 arms (10 marms - 20 marms) 20 arms (20 marms - 50 marms) 50 arms (50 marms - 100 marms) setup accuracy normal (10% + 10 arms) (test signal voltage 20 marms) (test frequency 1 mhz : spec., test frequency > 1 mhz : typ.) (10% + 100 arms) (test frequency 300 khz, test signal current > 20 marms) (spec.) (15% + 200 arms) (test frequency > 300 khz, test signal voltage > 20 marms) (test frequency 1 mhz : spec., test frequency > 1 mhz : typ.) constant 1 (6% + 10 arms) (test signal voltage 20 marms) (test frequency 1 mhz : spec., test frequency > 1 mhz : typ.) (6% + 100 arms) (test frequency 300 khz, test signal voltage > 20 marms) (spec.) (12% + 200 arms) (test frequency > 300 khz, test signal voltage > 20 marms) (test frequency 1 mhz : spec., test frequency > 1 mhz : typ.) test signal level monitor function C test signal voltage and test signal current can be monitored. C level monitor accuracy: table 33. test signal voltage monitor accuracy (vac) test signal voltage 2 test frequency shflofdwlr 5 mvrms to 2 vrms 1 mhz (3% of reading value + 0.5 mvrms) > 1mhz (6% of reading value + 1 mvrms) > 2 vrms 300 khz (3% of reading value + 5 mvrms) > 300 khz (6% of reading value + 10 mvrms) 3 table 34. test signal current monitor accuracy (iac) test signal current 2 test frequency shflofdwlr 50 arms to 20 marms 1 mhz (3% of reading value + 5 arms) > 1mhz (6% of reading value + 10 arms) > 20 marms 300 khz (3% of reading value + 50 arms) > 300 khz (6% of reading value + 100 arms) 1. when auto level control function is on. 2. this is not an output value but a displayed test signal level 3. typ. when test frequency is > 1 mhz with test signal voltage > 10 vrms. 21 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
dc bias signal table 35. test signal voltage range C40 v to +40 v resolution setup resolution: 100 v, effective resolution: 330 v (0 v - 5 v) 1 mv (5 v - 10 v) 2 mv (10 v - 20 v) 5 mv (20 v - 40 v) accuracy test signal voltage 2 vrms 0.1% + 2 mv (23 c 5 c) (0.1% + 2 mv) x 4 (0 to 18 c or 28 to 55 c) test signal voltage > 2 vrms 0.1 % + 4 mv (23 c 5 c) (0.1% + 4 mv) x 4 (0 to 18 c or 28 to 55 c) table 36. test signal current range C100 ma - 100 ma resolution setup resolution: 1 a, effective resolution: 3.3 a (0 a - 50 ma) 10 a (50 ma - 100 ma) dc bias voltage level monitor vdc (0.5% of reading value + 60 mv) kt when using vdc-idc measurement: (spec.) when using level monitor: (typ.) kt temperature coeffcient dc bias current level monitor idc (a [%] of the measurement value + b [a]) kt when using vdc-idc measurement: (spec.) when using level monitor: (typ.) a [%] when the measurement time mode is short: 2% when the measurement time mode is med or long: 1% b [a] given below kt temperature coeffcient when the measurement mode is short, double the following value. 22 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
table 37. test signal voltage 0.2 vrms (measurement time mode = med, long) dc bias current range impedance range [] < 100 100 300, 1 k 3 k, 10 k 30k, 100 k 20 a 150 a 30 a 3 a 300 na 45 na 200 a 150 a 30 a 3 a 300 na 300 na 2 ma 150 a 30 a 3 a 3 a 3 a 20 ma 150 a 30 a 30 a 30 a 30 a 100 ma 150 a 150 a 150 a 150 a 150 a table 38. 0.2 vrms < test signal voltage 2 vrms (measurement time mode = med, long) dc bias current range impedance range [] < 100 100, 300 1k, 3 k 10k, 30 k 100 k 20 a 150 a 30 a 3 a 300 na 45 na 200 a 150 a 30 a 3 a 300 na 300 na 2 ma 150 a 30 a 3 a 3 a 3 a 20 ma 150 a 30 a 30 a 30 a 30 a 100 ma 150 a 150 a 150 a 150 a 150 a table 39. test signal voltage > 2 vrms (measurement time mode = med, long) dc bias current range impedance range [] 300 1 k, 3 k 10k, 30 k 100 k 20 a 150 a 30 a 3 a 300 na 200 a 150 a 30 a 3 a 300 na 2 ma 150 a 30 a 3 a 3 a 20 ma 150 a 30 a 30 a 30 a 100 ma 150 a 150 a 150 a 150 a table 40. input impedance (nominal) input impedance conditions other than conditions below. q 7hvwvlqdoyrowdh9upv,pshgdqfhudqhnq eldvfxuuhqwudqh 7hvwvlqdoyrowdh9upv,pshgdqfhudqhnq eldvfxuuhqwudqh 7hvwvlqdoyrowdh9upv,pshgdqfhudqh nq eldvfxuuhqwudqh dc source signal table 41. test signal voltage range C10 v to 10 v resolution 1 mv accuracy 0.1% + 3 mv (23 c 5 c) p9[ (0 to 18 c or 28 to 55 c) table 42. test signal current range C45 ma to 45 ma (nominal) output impedance 100 (nominal) 23 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
dcr measurement specifcation dc resistance (rdc) measurement function is available when either E4980A-001/200 or e4980al-032/052/102 is installed. dc resistance (rdc) accuracy absolute measurement accuracy aa absolute measurement accuracy aa is given as equation 15. aa = ae + acal aa absolute accuracy (% of reading value) ae relative accuracy (% of reading value) acal calibration accuracy relative measurement accuracy ae relative measurement accuracy ae is given as equation 16. ae = [ab + (rs /|rm|+ go |rm|) 100 ] kt rm measurement value ab basic accuracy rs short offset [] go open offset [s] kt temperature coeffcient calibration accuracy acal calibration accuracy acal is 0.03%. basic accuracy ab table 43. basic accuracy ab is given below. measurement time mode test signal voltage 2 vrms > 2 vrms short 1.00% 2.00% med 0.30% 0.60% open offset go table 44. open offset go is given below. measurement time mode test signal voltage 2 vrms > 2 vrms short 50 ns 500 ns med 10 ns 100 ns short offset rs table 45. short offset rs is given below. measurement time mode test signal voltage 2 vrms > 2 vrms short pq pq med pq pq 24 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
effect of cable length (short offset) table 46. the following value is added to rs when the cable is extended. cable length 1 m 2 m 4 m 0.25 m 0.5 m 1 m temperature coeffcient kt table 47. temperature coeffcient kt is given below. temperature [c] kt 0 - 18 4 18 - 28 1 28 - 55 4 25 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
table 48. power source voltage 90 vac - 264 vac frequency 47 hz - 63 hz power consumption max. 150 va table 49. operating environment temperature 0 - 55 c humidity ( 40 c, no condensation) 15% - 85% rh altitude 0 m - 2000 m table 50. storage environment temperature C20 - 70 c humidity ( 60 c, no condensation) 0% - 90% rh altitude 0 m - 4572 m 2xwhuglphqvlrqv 375 (width) x 105 (height) 390 (depth) mm (nominal) general specifcations e4980a precision lcr meter 20 hz - 2 mhz l cur l pot h pot h cur dc bias usb dc source unknown discharge test device before connecting 42v peak max output cat i 10vdc max dc source (option 001) trigger dc bias dc source return 7 8 9 4 5 6 1 2 3 0 . preset display format meas setup recall a recall b save/ recall system local/ lock 22 22 22 27 55.2 40.1 103.8 367.4 14.4 14.4 338.6 41.8 28.0 27.3 55.0 e4980a precision lcr meter 20 hz - 2 mhz l cur l pot h pot h cur dc bias usb dc source unknown discharge test device before connecting 42v peak max output cat i 10vdc max dc source (option 001) trigger dc bias dc source return 7 8 9 4 5 6 1 2 3 0 . preset display format meas setup recall a recall b save/ recall system local/ lock 22 22 22 30.3 18.0 319.1 88.3 21.8 32.0 27 55.2 figure 2. dimensions (front view, with handle and bumper, in millimeters, nominal) figure 3. dimensions (front view, without handle and bumper, in millimeters, nominal) 26 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
option 301: scanner interface option 201: handler interface option 002: dc current control interface trigger gpib serial label lan 115v -230v 50/60hz 150va max fuse t3a , 250v e4980a option 710: no interface option 710: no interface 23.2 41.6 27.5 36.5 23.7 106.7 110.9 84.4 317.8 19.6 21.3 22.2 37 12.7 72.3 72.3 24.0 0.4 72.3 36.2 72.3 36.2 72.3 36.2 17.1 20.9 option 301: scanner interface option 201: handler interface option 002: dc current control interface trigger gpib serial label lan 115v -230v 50/60hz 150va max fuse t3a , 250v e4980a option 710: no interface option 710: no interface 23.2 41.6 34.7 367.4 17.6 17.6 332.2 118.1 26.6 37 25.5 25.7 23.9 113.9 72.3 72.3 31.1 49.3 55.0 28.0 101.6 0.4 figure 4. dimensions (rear view, with handle and bumper, in millimeters, nominal) figure 4. dimensions (rear view, with handle and bumper, in millimeters, nominal) 27 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
103.8 55.0 101.6 66.6 388.7 141.4 84.4 88.3 21.9 21.9 45.7 10.5 347.9 374.0 15.7 19.7 50.9 note effective pixels are more than 99.99%. there may be 0.01% (approx. 7 pixels) or smaller missing pixels or constantly lit pixels, but this is not a malfunction. figure 6. dimensions (side view, with handle and bumper, in millimeters, nominal) figure 7. dimensions (side view, without handle and bumper, in millimeters, nominal) weight: 5.3 kg (nominal) display: lcd, 320 240 (pixels), rgb color the following items can be displayed: C measurement value C measurement conditions C limit value and judgment result of comparator C list sweep table C self-test message 28 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
description supplemental information emc european council directive 2004/108/ec iec 61326-1:2012 en 61326-1:2013 cispr 11:2009 +a1:2010 en 55011: 2009 +a1:2010 group 1, class a iec 61000-4-2:2008 en 61000-4-2:2009 4 kv cd / 8 kv ad iec 61000-4-3:2006 +a1:2007 +a2:2010 en 61000-4-3:2006 +a1:2008 +a2:2010 3 v/m, 80-1000 mhz, 1.4 - 2.0 ghz / 1v/m, 2.0 - 2.7 ghz, 80% am iec 61000-4-4:2004 +a1:2010 en 61000-4-4:2004 +a1:2010 1 kv power lines / 0.5 kv signal lines iec 61000-4-5:2005 en 61000-4-5:2006 0.5 kv line-line / 1 kv line-ground iec 61000-4-6:2008 en 61000-4-6:2009 3 v, 0.15-80 mhz, 80% am iec 61000-4-8:2009 en 61000-4-8:2010 30a/m, 50/60hz iec 61000-4-11:2004 en 61000-4-11:2004 0.5-300 cycle, 0% / 70% ices/nmb-001 ices-001:2006 group 1, class a as/nzs cispr11:2004 group 1, class a kn11, kn61000-6-1 and kn61000-6-2 group 1, class a safety european council directive 2006/95/ec iec 61010-1:2001/en 61010-1:2001 measurement category i, pollution degree 2, indoor use iec60825-1:1994 class 1 led can/csa c22.2 61010-1-04 measurement category i, pollution degree 2, indoor use environment this product complies with the weee directive (2002/96/ec) marking requirements. the afxed label indicates that you must not discard this elec - trical/electronic product in domestic house hold waste. product category: with reference to the equipment types in the weee directive annex i, this product is classed as a monitoring and control instrumentation product. 29 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
supplemental information note discharge capacitors before connecting them to the unknown terminal or a test fxture to avoid damages to the instrument. figure 8. maximum discharge withstand voltage settling time table 51. test frequency setting time test frequency setting time test frequency (fm) 5 ms fm 1 khz 12 ms 1 khz > fm 250 hz 22 ms 250 hz > fm 60 hz 42 ms 60 hz > fm table 52. test signal voltage setting time test signal voltage setting time test frequency (fm) 11 ms fm 1 khz 18 ms 1 khz > fm 250 hz 26 ms 250 hz > fm 60 hz 48 ms 60 hz > fm switching of the impedance range is as follows: 5 ms/ range switching measurement circuit protection the maximum discharge withstand voltage, where the internal circuit remains protected if a charged capacitor is connected to the unknown terminal, is given below. table 53. maximum discharge withstand voltage maximum discharge withstand voltage range of capacitance value c of dut 1000 v c < 2 f 2/c v 2 f c 0 200 400 600 800 1000 1200 1.eC15 1.eC13 1.eC11 1.eC09 1.eC07 1.eC05 1.eC03 voltage [v] capacitance [f] 30 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
measurement time defnition this is the time between the trigger and the end of measurement (eom) output on the handler interface. conditions table 54 shows the measurement time when the following conditions are satisfed: C normal impedance measurement other than ls-rdc, lp-rdc, vdc-idc C impedance range mode: hold range mode C dc bias voltage level monitor: off C dc bias current level monitor: off C trigger delay: 0 s C step delay: 0 s C calibration data: off C display mode: blank table 54. e4980a measurement time [ms](dc bias:off) measurement time mode test frequency 20 hz 100 hz 1 khz 10 khz 100 khz 1 mhz 2 mhz 1 long 480 300 240 230 220 220 220 2 med 380 180 110 92 89 88 88 3 short 330 100 20 7.7 5.7 5.6 5.6 figure 9. measurement time (e4980a, dc bias: off) 20 100 1k 10k 100k 1m 2m 0.01 0.001 0.1 1 10 test frequency [hz] measurement time [sec] 1. long 2. med 3. short 31 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
table 55. e4980a-005 measurement time [ms] (dc bias: off) measurement time mode test frequency 20 hz 100 hz 1 khz 10 khz 100 khz 1 mhz 2 mhz 1 long 1190 650 590 580 570 570 570 2 med 1150 380 200 180 180 180 180 3 short 1040 240 37 25 23 23 23 figure 10. measurement time (dc bias: off, e4980a-005) table 56. e4980al measurement time [ms] measurement time mode test frequency 20 hz 100 hz 1 khz 10 khz 100 khz 1 mhz 1 long 729 423 363 353 343 343 2 med 650 250 140 122 119 118 3 short 579 149 26 14 12 12 figure 11. measurement time (e4980al) 20 100 1k 10k 100k 1m 2m 0.01 0.001 0.1 1 10 test frequency [hz] measurement time [sec] 1. long 2. med 3. short 20 100 1k 10k 100k 1m 2m 0.01 0.001 0.1 1 10 test frequency [hz] measurement time [sec] 1. long 2. med 3. short 32 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
when dc bias is on, the following time is added: table 57. additional time when dc bias is on [ms] test frequency 20 hz 100 hz 1 khz 10 khz 100 khz 1 mhz 2 mhz 30 30 10 13 2 0.5 0.5 when the number of averaging increases, the measurement time is given as equation 17. meastime + (ave C 1) avetime meastime measurement time calculated based on table 53 and table 54 ave number of averaging avetime refer to table 56 table 58. additional time per averaging [ms] measurement time mode test frequency 20 hz 100 hz 1 khz 10 khz 100 khz 1 mhz 2 mhz short 51 11 2.4 2.3 2.3 2.2 2.2 med 110 81 88 87 85 84 84 long 210 210 220 220 220 210 210 table 59. measurement time when vdc-idc is selected [ms] measurement time mode test frequency 20 hz 100 hz 1 khz 10 khz 100 khz 1 mhz 2 mhz short 210 46 14 14 14 14 14 med 210 170 170 170 170 170 170 long 410 410 410 410 410 410 410 add the same measurement time per 1 additional average additional measurement time when the vdc and idc monitor function is on. add short mode of table 59. when using only vdc or idc, add a half of short mode of table 59. table 60. measurement time when ls-rdc or lp-rdc is selected [ms] measurement time mode test frequency 20 hz 100 hz 1 khz 10 khz 100 khz 1 mhz 2 mhz short 910 230 43 24 22 22 22 med 1100 450 300 280 270 270 270 long 1400 820 700 670 660 650 650 add the three times of measurement time per 1 additional average number 33 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
display time except for the case of the display blank page, the time required to update the display on each page (display time) is as follows. when a screen is changed, drawing time and switching time are added. the measurement display is updated about every 100 ms. table 61. display time item when vdc, idc monitor is off when vdc, idc monitor is on meas display page drawing time 10 ms 13 ms meas display page (large) drawing time 10 ms 13 ms bin no. display page drawing time 10 ms 13 ms bin count display page drawing time 10 ms 13 ms list sweep display page drawing time 40 ms measurement display switching time 35 ms measurement data transfer time this table shows the measurement data transfer time under the following conditions. the measurement data transfer time varies depending on measurement conditions and computers. table 62. measurement transfer time under the following conditions: host computer: dell optiplex gx260 pentium 4 2.6 ghz display: on impedance range mode: auto (the overload has not been generated.) open/short/load compensation: off test signal voltage monitor: off table 63. measurement data transfer time [ms] interface data transfer format using :fetc? command (one point measurement) using data buffer memory (list sweep measurement) comparator on comparator off 10 points 51 points 128 points 201 points gpib ascii 2 2 4 13 28 43 ascii long 2 2 5 15 34 53 binary 2 2 4 10 21 32 usb ascii 2 2 3 8 16 23 ascii long 2 2 4 9 19 28 binary 2 2 3 5 9 13 lan ascii 3 4 5 12 24 36 ascii long 3 3 5 13 29 44 binary 3 3 5 9 18 26 34 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
dc bias test signal current (1.5 v/2.0 v): output current: max. 20 ma option 001 (power and dc bias enhance): dc bias voltage: dc bias voltage applied to dut is given as: equation 18. vdut = vb C 100 ib vdut [v] dc bias voltage vb [v] dc bias setting voltage ib [a] dc bias current dc bias current: dc bias current applied to dut is given as: equation 19. idut = vb/(100 + rdc) idut [a] dc bias current vb [v] dc bias setting current rdc [] duts dc resistance maximum dc bias current table 64. maximum dc bias current when the normal measurement can be performed. impedance udh> bias current isolation on off hvwvldorowdh9uv test signal voltage > 2 vrms 0.1 auto range mode: 100 ma hold range mode: its values for the range. 20 ma 100 ma 1 20 ma 100 ma 10 20 ma 100 ma 100 20 ma 100 ma 300 2 ma 100 ma 1 k 2 ma 20 ma 3 k 200 a 20 ma 10 k 200 a 2 ma 30 k 20 a 2 ma 100 k 20 a 200 a when dc bias is applied to dut when dc bias is applied to the dut, add the following value to the absolute accuracy ab. table 65. only when fm < 10 khz and |vdc| > 5 v short med, long 0.05% (100 mv/vs) (1 + (100/fm)) 0.01% (100 mv/vs) (1 + (100/fm)) fm [hz] test frequency vs [v] test signal voltage 35 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
relative measurement accuracy with bias current isolation when dc bias isolation is set to on, add the following value to the open offset yo. equation 20. yo_dci1 (1 + 1/(vs)) (1 + (500/fm)) + yo_dci2 zm [] impedance of dut fm [hz] test frequency vs [v] test signal voltage yo_dci1,2 [s] calculate this by using table 61 and 62 idc [a] dc bias isolation current table 66. yo_dci1 value dc bias current range measurement time mode short med, long 20 a 0 s 0 s 200 a 0.25 ns 0.05 ns 2 ma 2.5 ns 0.5 ns 20 ma 25 ns 5 ns 100 ma 250 ns 50 ns table 67. yo_dci2 value dc bias current range measurement time mode n nn nn 20 a 0 s 0 s 0 s 0 s 200 a 0 s 0 s 0 s 0 s 2 ma 0 s 0 s 0 s 3 ns 20 ma 0 s 0 s 30 ns 30 ns 100 ma 0 s 300 ns 300 ns 300 ns dc bias settling time when dc bias is set to on, add the following value to the settling time: table 68. dc bias settling time bias settling time 1 standard capacitance of dut 100 loge (2/1.8 m) + 3 m 2 option 001 capacitance of dut 100 loge (40/1.8 m) + 3 m 1 0 msec 1 0 0 msec 1 sec 1 0 sec 1 0 0 sec 1. 2. 1 f 10 f 100 f 1 mf 10 mf 100 mf dut capacitance settling time figure 12. dc bias settling time 36 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
web resources visit our web sites for additional product information and literature. e4980a precision lcr meter www.keysight.com/fnd/e4980a e4980al precision lcr meter www.keysight.com/fnd/e4980al lcr meters & impedance measurement products www.keysight.com/fnd/impedance rf & mw test accessories www.keysight.com/fnd/mta 37 | keysight | e4980a precision lcr meter 20 hz to 2 mhz, e4980al precision lcr meter 20 hz to 300 khz/500 khz/1 mhz C data sheet
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