View LT1126CN8PBF_4378787.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

lt1126/lt1127 11267fa 1 frequency (hz) 3 rms voltage noise density (nv/ hz) 10 30 100 0.1 10 100 1000 1126-7 ta01b 1 1.0 maximum typical v = 15v t = 25 c s a 1/f corner 2.3hz gain = 1000, bandwidth = 480khz input referred noise = 4.5nv/ hz at 1khz, 6 v rms over bandwidth + 1/4 lt1127 1126-7 ta01 output 1/4 lt1127 10k 620 6.2k 200 6.2k 10k ? ?input ? 620 ? + input 1/4 lt1127 + + , ltc and lt are registered trademarks of linear technology corporation. all other trademarks are the property of their respective owners. protected by u.s. patents including 4775884, 4837496. the lt 1126 dual and lt1127 quad are high perfor- mance, decompensated op amps that offer higher slew rate and bandwidth than the lt1124 dual and the lt1125 quad operational amplifiers. the enhanced ac perfor- mance is available without degrading dc specs of the lt1124/lt1125. both lt1126/lt1127 are stable in a gain of 10 or more. in the design, processing and testing of the device, par- ticular attention has been paid to the optimization of the entire distribution of several key parameters. slew rate, gain-bandwidth and 1khz noise are 100% tested for each individual amplifier. consequently, the specifications of even the lowest cost grades (the lt1126c and the lt1127c) have been enhanced. power consumption of the dual lt1126 is less than one half of two op-37s. low power and high performance in an 8-pin so package makes the lt1126 a first choice for surface mounted systems and where board space is restricted. two and three op amp instrumentation amplifiers low noise signal processing active filters microvolt accuracy threshold detection strain gauge amplifiers direct coupled audio gain stages tape head preamplifiers microphone preamplifiers accelerometer amplifiers infrared detectors 100% tested low voltage noise: 2.7nv/ hz typ, 4.2nv/ hz max slew rate: 11v/ s typ gain-bandwidth product: 65mhz typ offset voltage, prime grade: 70 v max low grade: 100 v max high voltage gain: 5 million min supply current per amplifier: 3.1ma max common mode rejection: 112db min power supply rejection: 116db min available in 8-lead soic, 8-lead dip, 16-lead so and 14-lead dip packages applicatio s u typical applicatio u descriptio u features dual/quad decompensated low noise, high speed precision op amps low noise, wide bandwidth instrumentation amplifier voltage noise vs frequency
2 lt1126/lt1127 11267fa package/order i for atio uu w absolute axi u rati gs w ww u (note 1) operating temperature range lt1126am/lt1126m lt1127am/lt1127m (obsolete) .. ?5 c to 125 c lt1126ac/lt1126c lt1127ac/lt1127c ............................ ?0 c to 85 c storage temperature range all grades ......................................... ?5 c to 150 c supply voltage ..................................................... 22v input voltage ............................ equal to supply voltage output short circuit duration .......................... indefinite differential input current (note 5) ...................... 25ma lead temperature (soldering, 10 sec.)................. 300 c j package 14-lead ceramic dip t jmax = 160 c, ja = 80 c/w 1 2 3 4 5 6 7 top view n package 14-lead pdip 14 13 12 11 10 9 8 out a in a +in a v + +in b in b out b out d in d +in d v +in c in c out c b a c d 1 2 3 4 8 7 6 5 top view out a in a +in a v v + out b in b +in b n8 package 8-lead pdip a b 1 2 3 4 5 6 7 8 top view sw package 16-lead plastic so wide 16 15 14 13 12 11 10 9 out a ?n a +in a v + +in b ?n b out b nc out d ?n d +in d v +in c ?n c out c nc b a c d lt1127acn lt1127cn lt1126acn8 lt1126cn8 order part number lt1127csw order part number lt1126cs8 1126 1 2 3 4 8 7 6 5 top view ?n a out a v + out b +in a v +in b ?n b s8 package 8-lead plastic so a b t jmax = 140 c, ja = 190 c/w note: this pin configuration differs from the 8-pin pdip configuration. instead, it follows the industry standard lt1013ds8 so package pin locations t jmax = 140 c, ja = 130 c/w t jmax = 140 c, ja = 130 c t jmax = 140 c, ja = 110 c (n) consult ltc marketing for parts specified with wider operating temperature ranges. obsolete package consider the n8 for alternate source lt1126amj8 lt1126mj8 lt1126cj8 j8 package 8-lead ceramic dip t jmax = 160 c, ja = 100 c/w lt1127amj lt1127mj lt1127cj obsolete package consider the n for alternate source order options tape and reel: add #tr lead free: add #pbf lead free tape and reel: add #trpbf lead free part marking: http://www.linear.com/leadfree/ s8 part marking
lt1126/lt1127 11267fa 3 v os input offset voltage lt1126 20 70 25 100 v lt1127 25 90 30 140 v ? v os long term input offset 0.3 0.3 v/mo ? time voltage stability i os input offset current lt1126 5 15 6 20 na lt1127 6 20 7 30 na i b input bias current 7 20 8 30 na e n input noise voltage 0.1hz to 10hz (notes 8, 9) 70 200 70 nvp-p input noise voltage density f o = 10hz (note 5) 3.0 5.5 3.0 5.5 nv/ hz f o = 1000hz (note 3) 2.7 4.2 2.7 4.2 nv/ hz i n input noise current density f o = 10hz 1.3 1.3 pa/ hz f o = 1000hz 0.3 0.3 pa/ hz v cm input voltage range 12.0 12.8 12.0 12.8 v cmrr common mode rejection ratio v cm = 12v 112 126 106 124 db psrr power supply rejection ratio v s = 4v to 18v 116 126 110 124 db a vol large signal voltage gain r l 10k ? , v o = 10v 5.0 17.0 3.0 15.0 v/ v r l 2k ? , v o = 10v 2.0 4.0 1.5 3.0 v/ v v out maximum output voltage swing r l 2k ? 13.0 13.8 12.5 13.8 v sr slew rate r l 2k ? (notes 3, 7) 8.0 11 8.0 11 v/ s gbw gain-bandwidth product f o = 10khz (note 3) 45 65 45 65 mhz z o open loop output resistance v o = 0, i o = 0 75 75 ? i s supply current per amplifier 2.6 3.1 2.6 3.1 ma channel separation f 10hz (note 9) 134 150 130 150 db v o = 10v, r l = 2k ? the denotes the specifications which apply over the full operating temperature range, otherwise specifications are at v s = 15v, ? 55 c t a 125 c, unless otherwise noted. lt1126am/ac lt1126m/c lt1127am/ac lt1127m/c symbol parameter conditions (note 2) min typ max min typ max units e lectr ic al c c hara terist ics v s = 15v, t a = 25 c, unless otherwise noted. lt1126am lt1126m lt1127am lt1127m symbol parameter conditions (note 1) min typ max min typ max units v os input offset voltage lt1126 50 170 60 250 v lt1127 55 190 70 290 v ? v os average input offset voltage drift (note 5) 0.3 1.0 0.4 1.5 v/ c ? temp i os input offset current lt1126 18 45 20 60 na lt1127 18 55 20 70 na i b input bias current 18 55 20 70 na v cm input voltage range 11.3 12 11.3 12 v cmrr common mode rejection ratio v cm = 11.3v 106 122 100 120 db psrr power supply rejection ratio v s = 4v to 18v 110 122 104 120 db a vol large signal voltage gain r l 10k ? , v o = 10v 3.0 10.0 2.0 10.0 v/ v r l 2k ? , v o = 10v 1.0 3.0 0.7 2.0 v/ v v out maximum output voltage swing r l 2k ? 12.5 13.6 12.0 13.6 v sr slew rate r l 2k ? (notes 3, 7) 7.2 10 7.0 10 v/ s i s supply current per amplifier 2.8 3.5 2.8 3.5 ma
4 lt1126/lt1127 11267fa the denotes the specifications which apply over the full operating temperature range, otherwise specifications are at v s = 15v, ? 40 c t a 85 c, unless otherwise noted. (note 10) lt1126ac lt1126c lt1127ac lt1127c symbol parameter conditions (note 2) min typ max min typ max units v os input offset voltage lt1126 35 120 45 170 v lt1127 40 140 50 210 v ? v os / ? t average input offset voltage drift (note 5) 0.3 1.0 0.4 1.5 v/ c i os input offset current lt1126 625 735 na lt1127 735 845 na i b input bias current 8 35 9 45 na v cm input voltage range 11.5 12.4 11.5 12.4 v cmrr common mode rejection ratio v cm = 11.5v 109 125 102 122 db psrr power supply rejection ratio v s = 4v to 18v 112 125 107 122 db a vol large signal voltage gain r l 10k ? , v o = 10v 4.0 15.0 2.5 14.0 v/ v r l 2k ? , v o = 10v 1.5 3.5 1.0 2.5 v/ v v out maximum output voltage swing r l 2k ? 12.5 13.7 12.0 13.7 v sr slew rate r l 2k ? (notes 3, 7) 7.5 10.5 7.3 10.5 v/ s i s supply current per amplifier 2.7 3.3 2.7 3.3 ma lt1126ac lt1126c lt1127ac lt1127c symbol parameter conditions (note 2) min typ max min typ max units v os input offset voltage lt1126 40 140 50 200 v lt1127 45 160 55 240 v ? v os / ? t average input offset voltage drift (note 5) 0.3 1.0 0.4 1.5 v/ c i os input offset current lt1126 15 40 17 55 na lt1127 15 50 17 65 na i b input bias current 15 50 17 65 na v cm input voltage range 11.4 12.2 11.4 12.2 v cmrr common mode rejection ratio v cm = 11.4v 107 124 101 121 db psrr power supply rejection ratio v s = 4v to 18v 111 124 106 121 db a vol large signal voltage gain r l 10k ? , v o = 10v 3.5 12.0 2.2 12.0 v/ v r l 2k ? , v o = 10v 1.2 3.2 0.8 2.3 v/ v v out maximum output voltage swing r l 2k ? 12.5 13.6 12.0 13.6 v sr slew rate r l 2k ? (note 7) 7.3 10.2 7.1 10.2 v/ s i s supply current per amplifier 2.8 3.4 2.8 3.4 ma electrical characteristics the denotes the specifications which apply over the full operating temperature range, otherwise specifications are at v s = 15v, 0 c t a 70 c, unless otherwise noted. note 7: slew rate is measured in a v = ?0; input signal is 1v, output measured at 5v. note 8: 0.1hz to 10hz noise can be inferred from the 10hz noise voltage density test. see the test circuit and frequency response curve for 0.1hz to 10hz tester in the applications information section of the lt1007 or lt1028 datasheets. note 9: this parameter is guaranteed but not tested. note 10: the lt1126/lt1127 are designed, characterized and expected to meet these extended temperature limits, but are not tested at 40 c and at 85 c. guaranteed i grade parts are available. consult factory. note 1: absolute maximum ratings are those values beyond which the life of a device may be impaired. note 2: typical parameters are defined as the 60% yield of parameter distributions of individual amplifiers; i.e., out of 100 lt1127s (or 100 lt1126s) typically 240 op amps (or 120) will be better than the indicated specification. note 3: this parameter is 100% tested for each individual amplifier. note 4: this parameter is sample tested only. note 5: this parameter is not 100% tested. note 6: the inputs are protected by back-to-back diodes. current limiting resistors are not used in order to achieve low noise. if differential input voltage exceeds 1.4v, the input current should be limited to 25ma.
lt1126/lt1127 11267fa 5 supply voltage (v) 0 0 supply current per amplifier (ma) 1 2 3 5101520 1126-7 g06 25 c 125 c ?5 c frequency (hz) 80 common mode rejection ratio (db) 100 120 140 160 1k 100k 1m 10m 1126-7 g05 10k 60 40 20 0 t a = 25 c v s = 15v v cm = 10v frequency (hz) voltage gain (db) 40 100 120 1126-7 g04 1 0.01 100 10k 1m 100m ?0 0 20 60 140 160 180 80 v s = 15v t a = 25 c a = ?0, v = 15v vcl s 1126-7 g03 +10v 0v ?0v 1126-7 g02 ?0mv a = ?0, v = 15v or 5v c = 15pf vcl s l 0mv 50mv frequency (mhz) 0.1 ?0 voltage gain (db) 10 30 40 50 1.0 10 100 1126-7 g01 0 20 180 140 100 80 60 160 120 phase shift (degrees) v = 15v t = 25 c c = 10pf s a l gain cc hara terist ics uw a t y p i ca lper f o r c e *see lt1115 data sheet for definition of ccif testing gain, phase shift vs frequency small-signal transient response large-signal transient response common mode rejection ratio vs voltage gain vs frequency frequency supply current vs supply voltage the typical behavior of many lt1126/lt1127 parameters is identical to the lt1124/lt1125. please refer to the lt1124/lt1125 data sheet for the following performance characteristics: 0.1hz to 10hz voltage noise 0.01hz to 1hz voltage noise current noise vs frequency input bias or offset current vs temperature output short circuit current vs time input bias current over the common mode range voltage gain vs temperature input offset voltage drift distribution offset voltage drift with temperature of representative units output voltage swing vs load current common mode limit vs temperature channel separation vs frequency warm-up drift power supply rejection ratio vs frequency
6 lt1126/lt1127 11267fa lt1126am/ac lt1126m/c lt1127am/ac lt1127m/c parameter 50% yield 98% yield 50% yield 98% yield units v os match, ? v os lt1126 20 110 30 130 v lt1127 30 150 50 180 v temperature coefficient match 0.35 1.0 0.5 1.5 v/ c average non-inverting i b 618725 na match of non-inverting i b 722830 na cmrr match 126 115 123 112 db psrr match 127 118 127 114 db applicatio s i for atio wu u u frequency (hz) intermodulation distortion (imd) (%) 3k 10k 20k 1126-7 g09 z l = 2k/15pf f (im) = 1khz f o = 13.5khz v o = 20vp-p a v = ?0 measurement bandwith = 10hz to 80khz lt1126 0.010 0.1 0.001 0.0001 frequency (hz) total harmonic distortion + noise (%) 0.010 0.1 20 1k 10k 20k 1126-7 g08 100 0.001 0.0001 z l = 2k/15pf v o = 20vp-p a v = +10, +100 measurement bandwith = 10hz to 80khz a v = +10 a v = +100 frequency (hz) total harmonic distortion + noise (%) 0.010 0.1 20 1k 10k 20k 1126-7 g07 100 0.001 0.0001 z l = 2k/15pf v o = 20vp-p a v = ?0, ?00 measurement bandwith = 10hz to 80khz a v = ?0 a v = ?00 total harmonic distortion total harmonic distortion and noise vs frequency for and noise vs frequency for intermodulation distortion inverting gain non-inverting gain (ccif method)* vs frequency cc hara terist ics uw a t y p i ca lper f o r c e *see lt1115 data sheet for definition of ccif testing matching specifications in many applications the performance of a system de- pends on the matching between two op amps, rather than the individual characteristics of the two devices. the three op amp instrumentation amplifier configuration shown in this data sheet is an example. matching characteristics are not 100% tested on the lt1126/lt1127. expected match some specifications are guaranteed by definition. for example, 70 v maximum offset voltage implies that mis- match cannot be more than 140 v. 112db (= 2.5 v/v) cmrr means that worst case cmrr match is 106db (5 v/v). however, the following table can be used to estimate the expected matching performance between the two sides of the lt1126, and between amplifiers a and d, and between amplifiers b and c of the lt1127.
lt1126/lt1127 11267fa 7 + output 1126-7 ai01 r s c s r f c f c in frequency (hz) gain error (%) 0.01 0.1 1.0 0.1 10 100 1126-7 ta03 0.001 1 gain error = closed loop gain open loop gain typical precision op amp lt1126/lt1127 + output 1126-7 ta02 365 ? 1% input 15k 5% 340k 1% 20k trim +15v ?5v rn60c film resistors the high gain and wide bandwidth of the lt1126/lt1127 is useful in low frequency high closed loop gain amplifier applications. a typical precision op amp may have an open loop gain of one million with 500khz bandwidth. as the gain error plot shows, this device is capable of 0.1% amplifying accuracy up to 0.3hz only. even instrumentation range signals can vary at a faster rate. the lt1126/lt1127 ?ain precision ?bandwidth product?is 330 times higher, as shown. lt1126 high speed operation when the feedback around the op amp is resistive (r f ), a pole will be created with r f , the source resistance and capacitance (r s , c s ), and the amplifier input capacitance (c in 2pf). in low closed loop gain configurations and gain error vs frequency closed loop gain = 1000 u s a o pp l ic at i ty p i ca l gain 1000 amplifier with 0.01% accuracy, dc to 5hz with r s and r f in the kilohm range, this pole can create excess phase shift and even oscillation. a small capacitor (c f ) in parallel with r f eliminates this problem. with r s (c s + c in ) = r f c f , the effect of the feedback pole is completely removed. applicatio s i for atio wu u u
8 lt1126/lt1127 11267fa j8 package 8-lead cerdip (narrow .300 inch, hermetic) (reference ltc dwg # 05-08-1110) 3 1126-7 ta04 + + + 1.1k 1.1k 1.1k 2.4k 2.4k 2.4k 7.5k 500 ? 1/4 lt1127 output 1/4 lt1127 1/4 lt1127 1/4 lt1127 120 120 120 input ?db bandwidth = 910 khz gain bandwidth product = 91.0mhz wideband noise = = 1.85nv/ hz referred to input rms noise dc to full bandwidth = 21.2 v referred to input 3.2nv/ hz + u s a o pp l ic at i ty p i ca l low noise, wideband, gain = 100 amplifier with high input impedance package descriptio u obsolete package j8 0801 .014 ?.026 (0.360 ?0.660) .200 (5.080) max .015 ?.060 (0.381 ?1.524) .125 3.175 min .100 (2.54) bsc .300 bsc (7.62 bsc) .008 ?.018 (0.203 ?0.457) 0 ?15 .005 (0.127) min .405 (10.287) max .220 ?.310 (5.588 ?7.874) 12 3 4 87 65 .025 (0.635) rad typ .045 ?.068 (1.143 ?1.650) full lead option .023 ?.045 (0.584 ?1.143) half lead option corner leads option (4 plcs) .045 ?.065 (1.143 ?1.651) note: lead dimensions apply to solder dip/plate or tin plate leads
lt1126/lt1127 11267fa 9 package descriptio u n8 package 8-lead pdip (narrow .300 inch) (reference ltc dwg # 05-08-1510) n8 1002 .065 (1.651) typ .045 ?.065 (1.143 ?1.651) .130 .005 (3.302 0.127) .020 (0.508) min .018 .003 (0.457 0.076) .120 (3.048) min 12 3 4 87 6 5 .255 .015* (6.477 0.381) .400* (10.160) max .008 ?.015 (0.203 ?0.381) .300 ?.325 (7.620 ?8.255) .325 +.035 ?015 +0.889 0.381 8.255 () note: 1. dimensions are inches millimeters *these dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed .010 inch (0.254mm) .100 (2.54) bsc s8 package 8-lead plastic small outline (narrow .150 inch) (reference ltc dwg # 05-08-1610) j package 14-lead cerdip (narrow .300 inch, hermetic) (reference ltc dwg # 05-08-1110) .016 ?.050 (0.406 ?1.270) .010 ?.020 (0.254 ?0.508) 45 0 ?8 typ .008 ?.010 (0.203 ?0.254) so8 0303 .053 ?.069 (1.346 ?1.752) .014 ?.019 (0.355 ?0.483) typ .004 ?.010 (0.101 ?0.254) .050 (1.270) bsc 1 2 3 4 .150 ?.157 (3.810 ?3.988) note 3 8 7 6 5 .189 ?.197 (4.801 ?5.004) note 3 .228 ?.244 (5.791 ?6.197) .245 min .160 .005 recommended solder pad layout .045 .005 .050 bsc .030 .005 typ inches (millimeters) note: 1. dimensions in 2. drawing not to scale 3. these dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed .006" (0.15mm) obsolete package j14 0801 .045 ?.065 (1.143 ?1.651) .100 (2.54) bsc .014 ?.026 (0.360 ?0.660) .200 (5.080) max .015 ?.060 (0.381 ?1.524) .125 (3.175) min .300 bsc (7.62 bsc) .008 ?.018 (0.203 ?0.457) 0 ?15 1 234 56 7 .220 ?.310 (5.588 ?7.874) .785 (19.939) max .005 (0.127) min 14 11 8 9 10 13 12 .025 (0.635) rad typ note: lead dimensions apply to solder dip/plate or tin plate leads
10 lt1126/lt1127 11267fa package descriptio u n14 1103 .020 (0.508) min .120 (3.048) min .130 .005 (3.302 0.127) .045 ?.065 (1.143 ?1.651) .065 (1.651) typ .018 .003 (0.457 0.076) .005 (0.127) min .255 .015* (6.477 0.381) .770* (19.558) max 3 1 2 4 5 6 7 8 9 10 11 12 13 14 .008 ?.015 (0.203 ?0.381) .300 ?.325 (7.620 ?8.255) .325 +.035 ?015 +0.889 0.381 8.255 () note: 1. dimensions are inches millimeters *these dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed .010 inch (0.254mm) .100 (2.54) bsc n package 14-lead pdip (narrow .300 inch) (reference ltc dwg # 05-08-1510)
lt1126/lt1127 11267fa 11 package descriptio u sw package 16-lead plastic small outline (wide .300 inch) (reference ltc dwg # 05-08-1620) s16 (wide) 0502 note 3 .398 ?.413 (10.109 ?10.490) note 4 16 15 14 13 12 11 10 9 1 n 23 4 5 6 78 n/2 .394 ?.419 (10.007 ?10.643) .037 ?.045 (0.940 ?1.143) .004 ?.012 (0.102 ?0.305) .093 ?.104 (2.362 ?2.642) .050 (1.270) bsc .014 ?.019 (0.356 ?0.482) typ 0 ?8 typ note 3 .009 ?.013 (0.229 ?0.330) .005 (0.127) rad min .016 ?.050 (0.406 ?1.270) .291 ?.299 (7.391 ?7.595) note 4 45 .010 ?.029 (0.254 ?0.737) inches (millimeters) note: 1. dimensions in 2. drawing not to scale 3. pin 1 ident, notch on top and cavities on the bottom of packages are the manufacturing options. the part may be supplied with or without any of the options 4. these dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed .006" (0.15mm) .420 min .325 .005 recommended solder pad layout .045 .005 n 1 2 3 n/2 .050 bsc .030 .005 typ information furnished by linear technology corporation is believed to be accurate and reliable. however, no responsibility is assumed for its use. linear technology corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
12 lt1126/lt1127 11267fa 1126-7 ss01 200 a 100 a 200 6k 200 6k 50 200 a v 100 a v + output q12 q11 q15 q16 q22 q23 q24 q2b q1b q1a inverting input (? non-inverting input (+) q10 q3 q9 q7 21k 21k 200pf 3.6k q17 q19 q20 3.6k q18 360 a v + v + 20pf 5pf 400 67pf q2a 570 a q25 q26 q27 20 20 q30 q29 q28 v q13 q8 ? linear technology corporation 1992 s w a w ch e ti i cdagra (1/2 lt1126, 1/4 lt1127) linear technology corporation 1630 mccarthy blvd., milpitas, ca 95035-7417 (408) 432-1900 fax: (408) 434-0507 www.linear.com lt/lt 0705 rev a ? printed in usa related parts part number description comments lt1124/lt1125 dual/quad low noise high speed precision op amps unity gain stable lt1037 low noise, high speed precision op amps 60mhz gbw, 11v/ s slew rate lt1678/lt1679 dual/quad low noise rail-to-rail precision op amps 20mhz gbw, 100 v v os lt1028 ultralow noise precision high speed op amps 1.1nv/ hz max, 0.85 v/hz typ lt6230 215mhz, rail-to-rail output low noise op amps 1.1nv/ hz, 3.5ma supply current

▲Up To Search▲

Price & Availability of LT1126CN8PBF

	To Download LT1126CN8PBF Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .