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19-1787; rev 8; 3/13 lm4040 improved precision micropower shunt voltage reference with multiple reverse breakdown voltages for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim? website at www.maximintegrated.com. general description the lm4040 is a precision two-terminal shunt mode, bandgap voltage reference available in fixed reverse breakdown voltages of 2.048v, 2.500v, 3.000v, 3.3v, 4.096v, and 5.000v. ideal for space-critical applica- tions, the lm4040 is offered in the subminiature 3-pin sc70 surface-mount package (1.8mm 1.8mm), 50% smaller than comparable devices in sot23 surface- mount packages (sot23 versions are also available). laser-trimmed resistors ensure precise initial accuracy. with a 100ppm/? temperature coefficient, the device is offered in four grades of initial accuracy ranging from 0.1% to 1%. the lm4040 has a 60? to 15ma shunt current capability with low dynamic impedance, ensur- ing stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents. the lm4040 does not require an external stabilizing capacitor while ensuring stability with any capacitive load. the lm4040 is guaranteed over the temperature range of -40? to +125?. for a 1.225v output version, refer to the lm4041 data sheet. ________________________applications portable, battery-powered equipment notebook computers cell phones industrial process controls features ultra-small 3-pin sc70 package 0.1% (max) initial accuracy 100ppm/c (max) temperature coefficient guaranteed over -40c to +125c temperature range wide operating current range: 60 a to 15ma low 28v rms output noise (10hz to 10khz) 2.048v, 2.500v, 3.000v, 3.3v, 4.096v, and 5.000v fixed reverse breakdown voltages no output capacitors required tolerates capacitive loads - 1 3 n.c.* + + lm4040 sc70-3/sot23-3 top view 2 *pin 3 must be left unconnected or connected to pin 2. pin configuration ordering information appears at end of data sheet.
lm4040 improved precision micropower shunt voltage reference with multiple reverse breakdown voltages 2 maxim integrated absolute maximum ratings electrical characteristics2.048v (i r = 100?, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 1) stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. reverse current (cathode to anode) ..................................20ma forward current (anode to cathode) ..................................10ma continuous power dissipation (t a = +70?) 3-pin sc70 (derate 2.17mw/? above +70?) ............174mw 3-pin sot23 (derate 4.01mw/? above +70?)..........320mw operating temperature range lm4040_i_ _ _..................................................-40? to +85? lm4040_e_ _ _ ..............................................-40? to +125? storage temperature range .............................-65? to +150? junction temperature ......................................................+150? lead temperature (soldering, 10s)..................................+300? soldering temperature (reflow) .......................................+260? parameter symbol conditions min typ max units lm4040a (0.1%) 2.046 2.048 2.050 lm4040b (0.2%) 2.044 2.048 2.052 lm4040c (0.5%) 2.038 2.048 2.058 reverse breakdown voltage v r t a = +25 c LM4040D (1.0%) 2.028 2.048 2.068 v lm4040a 2.0 15 lm4040b 4.0 17 lm4040c 10 23 reverse breakdown voltage tolerance (note 2) v r LM4040D 20 41 mv lm4040a/b/c 45 65 minimum operating current i rmin LM4040D 45 70 ? i r = 10ma 20 lm4040a/b/c 15 100 i r = 1ma LM4040D 15 150 average reverse voltage temperature coefficient (notes 2 and 3) ? v r /? t i r = 100? 15 ppm/ c lm4040a/b/c 0.3 1.0 i rmin i r 1ma LM4040D 0.3 1.2 lm4040a/b/c 2.5 8.0 reverse breakdown voltage change with operating current change 1ma i r 15ma LM4040D 2.5 10.0 mv lm4040a/b 0.3 0.8 lm4040c 0.3 0.9 reverse dynamic impedance (note 3) z r i r = 1ma, f = 120hz, i ac = 0.1i r LM4040D 0.3 1.1 ? wideband noise e n i r = 100?, 10hz f 10khz 28 ? rms reverse breakdown voltage long-term stability ? v r t = 1000h 120 ppm
lm4040 improved precision micropower shunt voltage reference with multiple reverse breakdown voltages 3 maxim integrated electrical characteristics2.500v (i r = 100?, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units lm4040a (0.1%) 2.4975 2.5000 2.5025 lm4040b (0.2%) 2.4950 2.5000 2.5050 lm4040c (0.5%) 2.4875 2.5000 2.5125 reverse breakdown voltage v r t a = +25 c LM4040D (1.0%) 2.4750 2.5000 2.5250 v lm4040a 2.0 19 lm4040b 4.0 21 lm4040c 10 29 reverse breakdown voltage tolerance (note 2) v r LM4040D 20 49 mv lm4040a/b/c 45 65 minimum operating current i rmin LM4040D 45 70 ? i r = 10ma 20 lm4040a/b/c 15 100 i r = 1ma LM4040D 15 150 average reverse voltage temperature coefficient (notes 2 and 3) ? v r /? t i r = 100? 15 ppm/ c lm4040a/b/c 0.3 1.0 i rmin i r 1ma LM4040D 0.4 1.2 lm4040a/b/c 2.5 8.0 reverse breakdown voltage change with operating current change 1ma i r 15ma LM4040D 2.5 10.0 mv lm4040a/b 0.3 0.8 lm4040c 0.3 0.9 reverse dynamic impedance (note 3) z r i r = 1ma, f = 120hz, i ac = 0.1i r LM4040D 0.3 1.1 ? wideband noise e n i r = 100?, 10hz f 10khz 35 ? rms reverse breakdown voltage long-term stability ? v r t = 1000h 120 ppm
lm4040 improved precision micropower shunt voltage reference with multiple reverse breakdown voltages 4 maxim integrated electrical characteristics3.000v (i r = 100?, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units lm4040a (0.1%) 2.997 3.000 3.003 lm4040b (0.2%) 2.994 3.000 3.006 lm4040c (0.5%) 2.985 3.000 3.015 reverse breakdown voltage v r t a = +25 c LM4040D (1.0%) 2.970 3.000 3.030 v lm4040a 3.0 22 lm4040b 6.0 26 lm4040c 15 34 reverse breakdown voltage tolerance (note 2) v r LM4040D 30 59 mv lm4040a/b/c 45 67 minimum operating current i rmin LM4040D 45 70 ? i r = 10ma 20 lm4040a/b/c 15 100 i r = 1ma LM4040D 15 150 average reverse voltage temperature coefficient (notes 2 and 3) ? v r /? t i r = 100? 15 ppm/ c lm4040a/b/c 0.3 1.0 i rmin i r 1ma LM4040D 0.3 1.2 lm4040a/b/c 2.5 8.0 reverse breakdown voltage change with operating current change 1ma i r 15ma LM4040D 2.5 10.0 mv lm4040a/b 0.3 0.8 lm4040c 0.3 0.9 reverse dynamic impedance (note 3) z r i r = 1ma, f = 120hz, i ac = 0.1i r LM4040D 0.3 1.1 ? wideband noise e n i r = 100?, 10hz f 10khz 45 ? rms reverse breakdown voltage long-term stability ? v r t = 1000h 120 ppm
lm4040 improved precision micropower shunt voltage reference with multiple reverse breakdown voltages 5 maxim integrated electrical characteristics3.300v (i r = 100?, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units lm4040a (0.1%) 3.2967 3.3000 3.3033 lm4040b (0.2%) 3.2934 3.3000 3.3066 lm4040c (0.5%) 3.2835 3.3000 3.3165 reverse breakdown voltage v r t a = +25 c LM4040D (1.0%) 3.2670 3.3000 3.3330 v lm4040a 3.0 22 lm4040b 6.0 26 lm4040c 15 34 reverse breakdown voltage tolerance (note 2) v r LM4040D 30 59 mv lm4040a/b/c 45 67 minimum operating current i rmin LM4040D 45 70 ? i r = 10ma 20 lm4040a/b/c 15 100 i r = 1ma LM4040D 15 150 average reverse voltage temperature coefficient (notes 2 and 3) ? v r /? t i r = 100? 15 ppm/ c lm4040a/b/c 0.3 1.0 i rmin i r 1ma LM4040D 0.3 1.2 lm4040a/b/c 2.5 8.0 reverse breakdown voltage change with operating current change 1ma i r 15ma LM4040D 2.5 10.0 mv lm4040a/b 0.3 0.8 lm4040c 0.3 0.9 reverse dynamic impedance (note 3) z r i r = 1ma, f = 120hz, i ac = 0.1i r LM4040D 0.3 1.1 ? wideband noise e n i r = 100?, 10hz f 10khz 50 ? rms reverse breakdown voltage long-term stability ? v r t = 1000h 120 ppm
lm4040 improved precision micropower shunt voltage reference with multiple reverse breakdown voltages 6 maxim integrated electrical characteristics4.096v (i r = 100?, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units lm4040a (0.1%) 4.092 4.096 4.100 lm4040b (0.2%) 4.088 4.096 4.104 lm4040c (0.5%) 4.076 4.096 4.116 reverse breakdown voltage v r t a = +25 c LM4040D (1.0%) 4.055 4.096 4.137 v lm4040a 4.1 31 lm4040b 8.2 35 lm4040c 20 47 reverse breakdown voltage tolerance (note 2) v r LM4040D 41 81 mv lm4040a/b/c 50 73 minimum operating current i rmin LM4040D 50 78 ? i r = 10ma 30 lm4040a/b/c 20 100 i r = 1ma LM4040D 20 150 average reverse voltage temperature coefficient (notes 2 and 3) ? v r /? t i r = 100? 15 ppm/ c lm4040a/b/c 0.5 1.2 i rmin i r 1ma LM4040D 0.5 1.5 lm4040a/b/c 3.0 10.0 reverse breakdown voltage change with operating current change 1ma i r 15ma LM4040D 3.0 13.0 mv lm4040a/b/c 0.5 1.0 reverse dynamic impedance (note 3) z r i r = 1ma, f = 120hz, i ac = 0.1i r LM4040D 0.5 1.3 ? wideband noise e n i r = 100?, 10hz f 10khz 64 ? rms reverse breakdown voltage long-term stability ? v r t = 1000h 120 ppm
lm4040 improved precision micropower shunt voltage reference with multiple reverse breakdown voltages 7 maxim integrated note 1: all devices are 100% production tested at t a = +25? and are guaranteed by design for t a = t min to t max , as specified. note 2: the overtemperature limit for reverse breakdown voltage tolerance is defined as the room-temperature reverse breakdown voltage tolerance ?( ?v r /?t)(max?t)(v r )], where ?v r /?t is the v r temperature coefficient, max ?t is the maxi- mum difference in temperature from the reference point of +25? to t min or t max , and v r is the reverse breakdown volt- age. the total overtemperature tolerance for the different grades in the temperature range where max ?t = +65? is shown below: a grade: ?.75% = ?.1% ?00ppm/? 65? b grade: ?.85% = ?.2% ?00ppm/? 65? c grade: ?.15% = ?.5% ?00ppm/? 65? d grade: ?.98% = ?.0% ?50ppm/? 65? the total over-temperature tolerance for the different grades in the extended temperature range where max ?t = +100? is shown below: a grade: ?.1% = ?.1% ?00ppm/? 100? b grade: ?.2% = ?.2% ?00ppm/? 100? c grade: ?.5% = ?.5% ?00ppm/? 100? d grade: ?.5% = ?.0% ?50ppm/? 100? therefore, as an example, the a-grade lm4040-2.5 has an over-temperature reverse breakdown voltage tolerance of ?.5v 0.75% = ?9mv. note 3: guaranteed by design. electrical characteristics5.000v (i r = 100?, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units lm4040a (0.1%) 4.995 5.000 5.005 lm4040b (0.2%) 4.990 5.000 5.010 lm4040c (0.5%) 4.975 5.000 5.025 reverse breakdown voltage v r t a = +25 c LM4040D (1.0%) 4.950 5.000 5.050 v lm4040a 5.0 38 lm4040b 10 43 lm4040c 25 58 reverse breakdown voltage tolerance (note 2) v r LM4040D 50 99 mv lm4040a/b/c 54 80 minimum operating current i rmin LM4040D 54 85 ? i r = 10ma 30 lm4040a/b/c 20 100 i r = 1ma LM4040D 20 150 average reverse voltage temperature coefficient (notes 2 and 3) ? v r /? t i r = 100? 15 ppm/ c lm4040a/b/c 0.5 1.4 i rmin i r 1ma LM4040D 0.5 1.8 lm4040a/b/c 3.5 12.0 reverse breakdown voltage change with operating current change 1ma i r 15ma LM4040D 3.5 15.0 mv lm4040a/b/c 0.5 1.1 reverse dynamic impedance (note 3) z r i r = 1ma, f = 120hz, i ac = 0.1i r LM4040D 0.5 1.5 ? wideband noise e n i r = 100?, 10hz f 10khz 80 ? rms reverse breakdown voltage long-term stability ? v r t = 1000h 120 ppm
lm4040 improved precision micropower shunt voltage reference with multiple reverse breakdown voltages 8 maxim integrated lm4040-2.5v temperature drift lm4040-02 temperature (c) reference voltage change (mv) 100 75 50 25 0 -25 -4 -3 -2 -1 0 1 -5 -50 125 lm4040-5.0v temperature drift lm4040 toc03 temperature (c) reference voltage change (mv) 100 75 50 25 0 -25 -15 -10 -5 0 5 -20 -50 125 typical operating characteristics (i r = 100?, sc70-3 package, t a = +25?, unless otherwise noted.) 0 1 2 3 4 5 6 05 01 0 0 reverse characteristics and minimum operating current lm4040-01 reverse current ( a) reverse voltage (v) lm4040_i_3-5.0 lm4040_i_3-4.1 lm4040_i_3-3.0 lm4040_i_3-2.5 lm4040_i_3-2.1 lm4040-5.0v reverse voltage vs. i shunt lm4040 toc05 i shunt (ma) reverse voltage change (mv) 15 10 5 1 2 3 4 5 6 0 02 0 t a = -40c t a = +125c t a = +85c t a = +25c lm4040-2.5v reverse voltage vs. i shunt lm4040-04 i shunt (ma) reverse voltage change (mv) 15 10 5 1 2 3 4 5 0 02 0 t a = +125c t a = -40c t a = +25c t a = +85c
lm4040 improved precision micropower shunt voltage reference with multiple reverse breakdown voltages 9 maxim integrated v gen v r ac-coupled +25a -25a 10mv/div lm4040-5.0v load-transient response lm4040-07 40s/div i shunt = 100a 25a r l = 100k?, see figure 1 v gen v r ac-coupled +250a -250a 10mv/div lm4040-2.5v load-transient response lm4040-08 10s/div i shunt = 1ma 250a r l = 10k?, see figure 1 typical operating characteristics (continued) (i r = 100?, sc70 package, t a = +25?, unless otherwise noted.) v gen v r ac-coupled +25a -25a 2mv/div lm4040-2.5v load-transient response lm4040-06 10s/div ch1: v gen 2v/div ch2: v r ac-coupled 2mv/div i shunt = 100a 25a, r l = 100k?, see figure 1 v gen v r ac-coupled +2.5ma -2.5ma 20mv/div lm4040-2.5v load-transient response lm4040-10 10s/div i shunt = 10ma 2.5ma r l = 1k?, see figure 1 v gen v r ac-coupled +2.5ma -2.5ma 20mv/div lm4040-5.0v load-transient response lm4040-11 10s/div i shunt = 10ma 2.5ma r l = 1k?, see figure 1 v gen v r ac-coupled +250a -250a 10mv/div lm4040-5.0v load-transient response lm4040-09 10s/div i shunt = 1ma 250a r l = 10k?, see figure 1 1k? v b + - i shunt v r r l v gen figure 1. load-transient test circuit
lm4040 improved precision micropower shunt voltage reference with multiple reverse breakdown voltages 10 maxim integrated v in v out lm4040-5.0v startup characteristics lm4040-13 04 0 5 0 20 3010 60 70 80 90 response time (s) 5v 0v 0v 4v 2v r s = 16k? see figure 2 0.1k 10k 1k 100k 1m lm4040-2.5v output impedance vs. frequency lm4040-14 frequency (hz) impedance (?) 1000 0.1 1 10 100 i r = 150a i r = 1ma c 1 = 1f c 1 = 0 typical operating characteristics (continued) (i r = 100?, sc70 package, t a = +25?, unless otherwise noted.) v in v out lm4040-2.5v startup characteristics lm4040-12 01 6 2 0 812 42 4 2 8 3 2 3 6 response time (s) 5v 0v 0v 2v 1v r s = 30k? see figure 2 1 100 10 1k 10k lm4040-2.5v noise vs. frequency lm4040-16 frequency (hz) 10,000 100 1000 noise (nv/ hz) 11 0 0 10 1k 10k lm4040-5.0v noise vs. frequency lm4040-17 frequency (hz) 10,000 100 1000 noise (nv/ hz) 0.1k 10k 1k 100k 1m lm4040-5.0v output impedance vs. frequency lm4040-15 frequency (hz) impedance (?) 100 0.1 1 10 i r = 150a i r = 1ma c 1 = 0 c 1 = 1f r s v in 1hz rate 50% duty cycle v r figure 2. startup characteristics test circuit
lm4040 improved precision micropower shunt voltage reference with multiple reverse breakdown voltages 11 maxim integrated detailed description the lm4040 shunt references use the bandgap princi- ple to produce a stable, accurate voltage. the device behaves similarly to an ideal zener diode; a fixed volt- age is maintained across its output terminals when biased with 60? to 15ma of reverse current. the lm4040 behaves similarly to a silicon diode when biased with forward currents up 10ma. figure 3 shows a typical operating circuit. the lm4040 is ideal for providing a stable reference from a high- voltage power supply. applications information the lm4040? internal pass transistor is used to maintain a constant output voltage (v shunt ) by sinking the necessary amount of current across a source resistor. the source resistance (r s ) is determined from the load current (i load ) range, supply voltage (v s ) variations, v shunt , and desired quiescent current. choose the value of r s when v s is at a minimum and i load is at a maximum. maintain a minimum i shunt of 60? at all times. the r s value should be large enough to keep i shunt less than 15ma for proper regulation when v s is maximum and i load is at a minimum. to prevent damage to the device, i shunt should never exceed 20ma. therefore, the value of r s is bounded by the following equation: [v s(min) - v r ] / [60? + i load(max) ] > r s > [v s(max) - v r ] / [20ma + i load(min) ] choosing a larger resistance minimizes the total power dis- sipation in the circuit by reducing the shunt current (p d(total) = v s i shunt ). provide a safety margin to incorporate the worst-case tolerance of the resistor used. ensure that the resistor? power rating is adequate, using the following general power equation: pd r = i shunt (v s(max) - v shunt ) output capacitance the lm4040 does not require an external capacitor for fre- quency stability and is stable for any output capacitance. temperature performance the lm4040 typically exhibits an output voltage tem- perature coefficient within ?5ppm/?. the polarity of the temperature coefficient may be different from one device to another; some may have positive coefficients, and others may have negative coefficients. high temperature operation the maximum junction temperature of the lm4040 is +150?. the maximum operating temperature for the lm4040_e_ is +125?. at a maximum load current of 15ma and a maximum output voltage of 5v, the part will dissipate 75mw of power. the power dissipation limits of the 3-pin sc70 call for a derating value of 2.17mw/? above +70? and thus for 75mw of power dissipation, the part will self- heat to 35.56? above ambient temperature. if the ambient temperature is +125?, the part operates at 159.56?, thereby exceeding the maximum junction temperature value of +150?. for high-temperature operation, care must be taken to ensure the combination of ambient temperature, output power dissipation and package thermal resistance does not conspire to raise the device temperature beyond that listed in the absolute maximum ratings . either reduce the output load current or the ambient temperature to keep the part within the limits. figure 3. typical operating circuit lm4040 i load i shunt r s v s v r i shunt + i load pin description pin name function 1 + positive terminal of the shunt reference 2 ? negative terminal of the shunt reference 3 n.c. no connection. leave this pin unconnected or connected to pin 2.
lm4040 improved precision micropower shunt voltage reference with multiple reverse breakdown voltages 12 maxim integrated part output voltage (v) initial accuracy (%) tempco (ppm/c) temp range pin-package top mark lm4040aim3-2.1+t 2.048 0.1 100 -40c to +85c 3 sot23 fzef lm4040aix3-2.1+t 2.048 0.1 100 -40c to +85c 3 sc70 abj lm4040bim3-2.1+t 2.048 0.2 100 -40c to +85c 3 sot23 fzeg lm4040bix3-2.1+t 2.048 0.2 100 -40c to +85c 3 sc70 abk lm4040cim3-2.1+t 2.048 0.5 100 -40c to +85c 3 sot23 fzeh lm4040cix3-2.1+t 2.048 0.5 100 -40c to +85c 3 sc70 abl LM4040Dim3-2.1+t 2.048 1.0 150 -40c to +85c 3 sot23 fzei LM4040Dix3-2.1+t 2.048 1.0 150 -40c to +85c 3 sc70 abm lm4040aem3-2.1+t 2.048 0.1 100 -40c to +125? 3 sot23 fzng lm4040aex3-2.1+t 2.048 0.1 100 -40c to +125? 3 sc70 alf lm4040bem3-2.1-t 2.048 0.2 100 -40c to +125? 3 sot23 fznh lm4040bex3-2.1-t 2.048 0.2 100 -40c to +125? 3 sc70 alg lm4040cem3-2.1-t 2.048 0.5 100 -40c to +125? 3 sot23 fzni lm4040cex3-2.1+t 2.048 0.5 100 -40c to +125? 3 sc70 alh LM4040Dem3-2.1+t 2.048 1.0 150 -40c to +125? 3 sot23 fznj LM4040Dex3-2.1+t 2.048 1.0 150 -40c to +125? 3 sc70 ali lm4040aim3-2.5+t 2.500 0.1 100 -40c to +85c 3 sot23 fzej lm4040aix3-2.5+t 2.500 0.1 100 -40c to +85c 3 sc70 abn lm4040bim3-2.5+t 2.500 0.2 100 -40c to +85c 3 sot23 fzek lm4040bim3-2.5/v+t 2.500 0.2 100 -40c to +125c 3 sot23 fzwl lm4040bix3-2.5+t 2.500 0.2 100 -40c to +85c 3 sc70 abo lm4040cim3-2.5+t 2.500 0.5 100 -40c to +85c 3 sot23 fzel lm4040cix3-2.5+t 2.500 0.5 100 -40c to +85c 3 sc70 abp LM4040Dim3-2.5+t 2.500 1.0 150 -40c to +85c 3 sot23 fzem LM4040Dix3-2.5+t 2.500 1.0 150 -40c to +85c 3 sc70 abq lm4040aem3-2.5+t 2.500 0.1 100 -40c to +125? 3 sot23 fznk lm4040aex3-2.5+t 2.500 0.1 100 -40c to +125? 3 sc70 alj lm4040bem3-2.5+t 2.500 0.2 100 -40c to +125? 3 sot23 fznl lm4040bex3-2.5+t 2.500 0.2 100 -40c to +125? 3 sc70 alk lm4040cem3-2.5+t 2.500 0.5 100 -40c to +125? 3 sot23 fznm lm4040cem3-2.5/v+t 2.500 0.5 100 -40c to +125? 3 sot23 fzvz lm4040cex3-2.5+t 2.500 0.5 100 -40c to +125? 3 sc70 all LM4040Dem3-2.5+t 2.500 1.0 150 -40c to +125? 3 sot23 fznn LM4040Dex3-2.5+t 2.500 1.0 150 -40c to +125? 3 sc70 alm ordering information + denotes a lead(pb)-free/rohs-compliant package. t = tape and reel.
lm4040 improved precision micropower shunt voltage reference with multiple reverse breakdown voltages 13 maxim integrated part output voltage (v) initial accuracy (%) tempco (ppm/c) temp range pin-package top mark lm4040aim3-3.0+t 3.000 0.1 100 -40c to +85c 3 sot23 fzen lm4040aix3-3.0+t 3.000 0.1 100 -40c to +85c 3 sc70 abr lm4040bim3-3.0+t 3.000 0.2 100 -40c to +85c 3 sot23 fzeo lm4040bix3-3.0+t 3.000 0.2 100 -40c to +85c 3 sc70 abs lm4040cim3-3.0+t 3.000 0.5 100 -40c to +85c 3 sot23 fzep lm4040cix3-3.0+t 3.000 0.5 100 -40c to +85c 3 sc70 abt LM4040Dim3-3.0+t 3.000 1.0 150 -40c to +85c 3 sot23 fzeq LM4040Dix3-3.0+t 3.000 1.0 150 -40c to +85c 3 sc70 abu lm4040aem3-3.0+t 3.000 0.1 100 -40c to +125? 3 sot23 fzno lm4040aem3-3.0/v+t 3.000 0.1 100 -40c to +125? 3 sot23 fzww lm4040aex3-3.0+t 3.000 0.1 100 -40c to +125? 3 sc70 aln lm4040bem3-3.0+t 3.000 0.2 100 -40c to +125? 3 sot23 fznp lm4040bex3-3.0+t 3.000 0.2 100 -40c to +125? 3 sc70 alo lm4040cex3-3.0+t 3.000 0.5 100 -40c to +125? 3 sc70 alp LM4040Dem3-3.0+t 3.000 1.0 150 -40c to +125? 3 sot23 fznr LM4040Dex3-3.0+t 3.000 1.0 150 -40c to +125? 3 sc70 alq lm4040aex3-3.3+t 3.300 0.1 100 -40c to +125? 3 sc70 any lm4040bex3-3.3+t 3.300 0.2 100 -40c to +125? 3 sc70 anz lm4040cex3-3.3+t 3.300 0.5 100 -40c to +125? 3 sc70 aoa LM4040Dex3-3.3+t 3.300 1.0 150 -40c to +125? 3 sc70 aob lm4040aim3-4.1+t 4.096 0.1 100 -40c to +85c 3 sot23 fzer lm4040aix3-4.1+t 4.096 0.1 100 -40c to +85c 3 sc70 abv lm4040bim3-4.1+t 4.096 0.2 100 -40c to +85c 3 sot23 fzes lm4040bix3-4.1+t 4.096 0.2 100 -40c to +85c 3 sc70 abw lm4040cim3-4.1+t 4.096 0.5 100 -40c to +85c 3 sot23 fzet lm4040cix3-4.1+t 4.096 0.5 100 -40c to +85c 3 sc70 abx LM4040Dim3-4.1+t 4.096 1.0 150 -40c to +85c 3 sot23 fzeu LM4040Dix3-4.1+t 4.096 1.0 150 -40c to +85c 3 sc70 aby lm4040aem3-4.1+t 4.096 0.1 100 -40c to +125c 3 sot23 fzns lm4040aex3-4.1+t 4.096 0.1 100 -40c to +125c 3 sc70 alr lm4040bem3-4.1+t 4.096 0.2 100 -40c to +125c 3 sot23 fznt lm4040bex3-4.1+t 4.096 0.2 100 -40c to +125c 3 sc70 als lm4040cem3-4.1+t 4.096 0.5 100 -40c to +125c 3 sot23 fznu ordering information (continued) + denotes a lead(pb)-free/rohs-compliant package. t = tape and reel.
lm4040 improved precision micropower shunt voltage reference with multiple reverse breakdown voltages 14 maxim integrated part output voltage (v) initial accuracy (%) tempco (ppm/c) temp range pin-package top mark lm4040cex3-4.1+t 4.096 0.5 100 -40c to +125c 3 sc70 alt LM4040Dem3-4.1+t 4.096 1.0 150 -40c to +125c 3 sot23 fznv LM4040Dem3-4.1/v+t 4.096 1.0 150 -40c to +125c 3 sot23 fzwa LM4040Dex3-4.1+t 4.096 1.0 150 -40c to +125c 3 sc70 alu lm4040aim3-5.0+t 5.000 0.1 100 -40c to +85c 3 sot23 fzev lm4040aim3-5.0/v+t 5.000 0.1 100 -40c to +85c 3 sot23 +fzwb lm4040aix3-5.0+t 5.000 0.1 100 -40c to +85c 3 sc70 abz lm4040bim3-5.0+t 5.000 0.2 100 -40c to +85c 3 sot23 fzew lm4040bix3-5.0+t 5.000 0.2 100 -40c to +85c 3 sc70 aca lm4040cim3-5.0+t 5.000 0.5 100 -40c to +85c 3 sot23 fzex lm4040cix3-5.0+t 5.000 0.5 100 -40c to +85c 3 sc70 acb LM4040Dim3-5.0+t 5.000 1.0 150 -40c to +85c 3 sot23 fzey LM4040Dix3-5.0+t 5.000 1.0 150 -40c to +85c 3 sc70 acc lm4040aem3-5.0+t 5.000 0.1 100 -40c to +125c 3 sot23 fznw lm4040aem3-5.0/v+t 5.000 0.1 100 -40c to +125c 3 sot23 fzwb lm4040aex3-5.0+t 5.000 0.1 100 -40c to +125c 3 sc70 alv lm4040bem3-5.0+t 5.000 0.2 100 -40c to +125c 3 sot23 fznx lm4040bex3-5.0+t 5.000 0.2 100 -40c to +125c 3 sc70 alw lm4040cem3-5.0+t 5.000 0.5 100 -40c to +125c 3 sot23 fzny lm4040cem3-5.0/v+t 5.000 0.5 100 -40c to +125c 3 sot23 +fzwc lm4040cex3-5.0+t 5.000 0.5 100 -40c to +125c 3 sc70 alx LM4040Dem3-5.0+t 5.000 1.0 150 -40c to +125c 3 sot23 fznz LM4040Dex3-5.0+t 5.000 1.0 150 -40c to +125c 3 sc70 aly ordering information (continued) chip information process: bicmos + denotes a lead(pb)-free/rohs-compliant package. t = tape and reel. package information for the latest package outline information and land patterns (foot- prints), go to www.maximintegrated.com/packages . note that a ?? ?? or ??in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status. package type package code outline no. land pattern no. 3 sot23 u3+1 21-0051 90-0179 3 sc70 x3+2 21-0075 90-0208
maxim integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim integrated product. no circuit patent licenses are implied. maxim integrated reserves the right to change the circuitry and specifications without notice at any time. the parametric values (min and max limits) shown in the electrical characteristics table are guaranteed. other parametric values quoted in this data sheet are provided for guidance. maxim integrated 160 rio robles, san jose, ca 95134 usa 1-408-601-1000 ________________________________ 15 2013 maxim integrated products, inc. maxim integrated and the maxim integrated logo are trademarks of maxim integrated products, inc. lm4040 improved precision micropower shunt voltage reference with multiple reverse breakdown voltages revision history revision number revision date description pages changed 0 8/00 initial release 5 7/05 updated electrical characteristics . 2? 6 4/11 updated selector guide , absolute maximum ratings, and ordering information . 1, 2, 12, 13, 14 7 11/11 add /v+ automotive-qualified identification to the selector guide and ordering information . 1, 12 8 3/13 updated ordering information and removed selector guide. 1, 13, 14

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