LT®1124 dual LT1125 quad high performance amps that offer higher gain,
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LT1124/LT1125 Dual/Quad Noise, High Speed Precision Amps DESCRIPTIO
LT®1124 dual LT1125 quad high performance amps that offer higher gain, slew rate bandwidth than industry standard OP-27 competing OP-270/ OP-470 amps. addition, LT1124/LT1125 have lower than OP-27; lower noise than OP-270/OP-470. design, processing testing device, particular attention been paid optimization entire distribution several parameters. Slew rate, gain bandwidth 1kHz noise 100% tested each individual amplifier. Consequently, specifications even lowest cost grades (the LT1124C LT1125C) have been spectacularly improved compared equivalent grades competing amplifiers. Power consumption LT1124 half OP-27s. power high performance 8-pin package make LT1124 first choice surface mounted systems where board space restricted. decompensated version these devices, with three times higher slew rate bandwidth, please LT1126/LT1127 data sheet.
100% Tested Voltage Noise: 2.7nV/Hz 4.2nV/Hz Slew Rate: 4.5V/µs Gain Bandwidth Product: 12.5MHz Offset Voltage, Prime Grade: 70µV Grade: 100µV High Voltage Gain: Million Supply Current Amplifier: 2.75mA Common Mode Rejection: 112dB Power Supply Rejection: 116dB Available 8-Pin Package
APPLICATIO
Three Instrumentation Amplifiers Noise Signal Processing Active Filters Microvolt Accuracy Threshold Detection Strain Gauge Amplifiers Direct Coupled Audio Gain Stages Tape Head Preamplifiers Infrared Detectors
registered trademarks Linear Technology Corporation. Protected U.S. patents 4,775,884 4,837,496.
TYPICAL APPLICATIO
Instrumentation Amplifier with Shield Driver
LT1125
3.4k
Input Offset Voltage Distribution (All Packages, LT1124 LT1125)
25°C DUALS QUADS 2316 UNITS TESTED
GUARD
INPUT
GUARD
LT1125
OUTPUT
PERCENT UNITS
LT1125 -15V
LT1125
3.4k
GAIN RF/RG) 1000 POWER 170kHz SMALL-SIGNAL 400kHz NOISE 3.8µV/Hz OUTPUT 35µV
-100
1124/25 TA01
INPUT OFFSET VOLTAGE (µV)
1124/25 TA02
LT1124/LT1125 ABSOLUTE RATI (Note
Operating Temperature Range LT1124AC/LT1124C LT1125AC/LT1125C (Note 40°C 85°C LT1124AI/LT1124I 40°C 85°C LT1124AM/LT1124M LT1125AM/LT1125M 55°C 125°C Supply Voltage ±22V Input Voltages Equal Supply Voltage Output Short-Circuit Duration Indefinite Differential Input Current (Note ±25mA Lead Temperature (Soldering, sec). 300°C Storage Temperature Range 65°C 150°C
PACKAGE/ORDER ATIO
VIEW
ORDER PART NUMBER LT1124CS8 LT1124AIS8 LT1124IS8 PART MARKING 1124 1124AI 1124I LT1125CS
PACKAGE 8-LEAD PLASTIC TJMAX 140°C, 190°C
NOTE: THIS CONFIGURATION DIFFERS FROM 8-PIN PDIP CONFIGURATION. INSTEAD, FOLLOWS INDUSTRY STANDARD LT1013DS8 PACKAGE LOCATIONS VIEW
PACKAGE 16-LEAD PLASTIC (WIDE) TJMAX 140°C, 130°C
ELECTRICAL CHARACTERISTICS
SYMBOL Time PARAMETER Input Offset Voltage Long Term Input Offset Voltage Stability Input Offset Current LT1124 LT1125 LT1124 LT1125
25°C, ±15V, unless otherwise noted.
LT1124AC/AI/AM LT1125AC/AM LT1124/C/I/M LT1125/C/M
CONDITIONS (Note
VIEW
ORDER PART NUMBER LT1124CJ8 LT1124ACN8 LT1124CN8 LT1124AMJ8 LT1124MJ8
PACKAGE 8-LEAD CERDIP
PACKAGE 8-LEAD PDIP
TJMAX 160°C, 100°C (J8) TJMAX 140°C, 130°C (N8)
VIEW
LT1125CJ LT1125ACN LT1125CN LT1125AMJ LT1125MJ
PACKAGE PACKAGE 14-LEAD CERDIP 14-LEAD PDIP
TJMAX 160°C, 80°C TJMAX 140°C, 110°C
UNITS µV/Mo
LT1124/LT1125
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER Input Bias Current Input Noise Voltage Input Noise Voltage Density CMRR PSRR AVOL VOUT Input Noise Current Density Input Voltage Range Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing Slew Rate Gain Bandwidth Product Open-Loop Output Resistance Supply Current Amplifier Channel Separation 10Hz (Note VOUT ±10V, ±12V ±18V 10k, VOUT ±10V VOUT ±10V (Notes 100kHz (Note VOUT IOUT 0.1Hz 10Hz (Notes 10Hz (Note 1000Hz (Note 10Hz 1000Hz
25°C, ±15V, unless otherwise noted.
LT1124AC/AI/AM LT1125AC/AM ±12.8 ±13.8 12.5 2.75 ±12.5 LT1124C/I/M LT1125C/M ±12.8 ±13.8 12.5 2.75
CONDITIONS (Note
UNITS nVP-P nV/Hz nV/Hz pA/Hz pA/Hz V/µV V/µV V/µs
denotes specifications which apply over -55°C 125°C temperature range, ±15V, unless otherwise noted.
LT1124AM LT1125AM
SYMBOL Temp CMRR PSRR AVOL VOUT
PARAMETER Input Offset Voltage Average Input Offset Voltage Drift Input Offset Current Input Bias Current Input Voltage Range Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing Slew Rate Supply Current Amplifier
CONDITIONS (Note LT1124 LT1125 (Note LT1124 LT1125
LT1124M LT1125M ±11.3 ±13.6 3.25
UNITS µV/°C V/µV V/µV V/µs
±11.3 ±12.5 ±13.6
±11.3V ±18V 10k, VOUT ±10V VOUT ±10V (Notes
3.25
LT1124/LT1125
temperature range, ±15V, unless otherwise noted.
SYMBOL Temp CMRR PSRR AVOL VOUT PARAMETER Input Offset Voltage Average Input Offset Voltage Drift Input Offset Current Input Bias Current Input Voltage Range Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing Slew Rate Supply Current Amplifier
ELECTRICAL CHARACTERISTICS
denotes specifications which apply over 70°C
LT1124AC LT1125AC ±12.4 ±13.7 ±11.5 LT1124C LT1125C ±12.4 ±13.7
CONDITIONS (Note LT1124 LT1125 (Note LT1124 LT1125
UNITS µV/°C V/µV V/µV V/µs
±11.5V ±18V 10k, VOUT ±10V VOUT ±10V (Notes
±11.5 ±12.5
denotes specifications which apply over -40°C 85°C temperature range, ±15V, unless otherwise noted. (Note
LT1124AC/AI LT1125AC ±12.2 ±13.6 ±11.4 3.25 LT1124C/I LT1125C ±12.2 ±13.6
SYMBOL Temp CMRR PSRR AVOL VOUT
PARAMETER Input Offset Voltage Average Input Offset Voltage Drift Input Offset Current Input Bias Current Input Voltage Range Common Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing Slew Rate Supply Current Amplifier
CONDITIONS (Note LT1124 LT1125 (Note LT1124 LT1125
UNITS µV/°C V/µV V/µV V/µs
±11.4V ±18V 10k, VOUT ±10V VOUT ±10V (Notes
±11.4 ±12.5
3.25
Note Absolute Maximum Ratings those values beyond which life device impaired. Note Typical parameters defined yield parameter distributions individual amplifiers; i.e., LT1125s LT1124s) typically amps 120) will better than indicated specification. Note This parameter 100% tested each individual amplifier. Note This parameter sample tested only. Note This parameter 100% tested. Note inputs protected back-to-back diodes. Current limiting resistors used order achieve noise. differential input voltage exceeds ±1.4V, input current should limited 25mA.
Note Slew rate measured input signal ±7.5V, output measured ±2.5V. Note 0.1Hz 10Hz noise inferred from 10Hz noise voltage density test. test circuit frequency response curve 0.1Hz 10Hz tester Applications Information section LT1007 LT1028 data sheets. Note This parameter guaranteed tested. Note LT1124C/LT1125C LT1124AC/LT1125AC guaranteed meet specified performance from 70°C designed, characterized expected meet these extended temperature limits, tested -40°C 85°C. LT1124AI LT1124I guaranteed meet extended temperature limits.
LT1124/LT1125
TYPICAL PERFOR CHARACTERISTICS
0.1Hz 10Hz Voltage Noise 0.01Hz Voltage Noise
VOLTAGE NOISE DENSITY (nV/Hz)
VOLTAGE NOISE (40nV/DIV)
VOLTAGE NOISE (40nV/DIV)
TIME (SECONDS)
Current Noise Frequency
10.0
CURRENT NOISE DENSITY (pA/Hz)
INPUT BIAS OFFSET CURRENT (nA)
SOURCING
±15V 25°C
SHORT-CIRCUIT CURRENT (mA)
MAXIMUM CORNER 100Hz FREQUENCY (Hz)
1124
SINKING
TYPICAL
Input Bias Current Over Common Mode Range
COMMON MODE REJECTION RATIO (dB) ±15V 25°C
POWER SUPPLY REJECTION RATIO (dB)
INPUT BIAS CURRENT (nA)
COMMON MODE INPUT VOLTAGE DEVICE WITH NEGATIVE INPUT CURRENT DEVICE WITH POSITIVE INPUT CURRENT
1124/25
1124/25
Voltage Noise Frequency
±15V 25°C
MAXIMUM CORNER 2.3Hz TYPICAL
TIME (SECONDS)
FREQUENCY (Hz)
1000
1124/25
1124/25
Input Bias Offset Current Temperature
±15V
Output Short-Circuit Current Time
±15V 25°C 55°C 125°C
125°C 25°C -55°C TIME FROM OUTPUT SHORT (MINUTES)
LT1124
LT1124M/LT1125M
LT1124AM/LT1125AM TEMPERATURE (°C)
1124/25
Common Mode Rejection Ratio Frequency
25°C ±15V ±10V
Power Supply Rejection Ratio Frequency
25°C
PSRR +PSRR FREQUENCY (Hz)
1124/25
100k FREQUENCY (Hz)
1124/25
LT1124/LT1125
TYPICAL PERFOR CHARACTERISTICS
Voltage Gain Frequency
±15V 25°C
VOLTAGE GAIN
VOLTAGE GAIN (dB)
VOLTAEG GAIN (dB)
0.01
FREQUENCY (Hz)
Input Offset Voltage Drift Distribution
±15V UNITS TESTED
SUPPLY CURRENT AMPLIFIER (mA)
OFFSET VOLTAGE (µV)
PERCENT UNITS
-0.4 -0.8 INPUT OFFSET VOLTAGE DRIFT (µV/°C)
1124/25
Small-Signal Transient Response
OUTPUT VOLTAGE SWING
50mV
50mV
AVCL ±15V 15pF
1124/25 1124/25
Voltage Gain Temperature
100M LT1124M/LT1125M
1124/25
Gain, Phase Shift Frequency
±15V 25°C 10pF
LT1124AM/LT1125AM LT1124M/LT1125M ±15V VOUT GAIN
PHASE SHIFT (DEGREES)
1124/25
LT1124AM/LT1125AM
TEMPERATURE (°C)
FREQUENCY (MHz)
Offset Voltage Drift with Temperature Representative Units
±15V
Supply Current Supply Voltage
125°C 25°C -55°C
TEMPERATURE (°C)
SUPPLY VOLTAGE
1124/25
1124/25
Large-Signal Transient Response
-0.8 -1.0 -1.2 -1.4 -1.6
Output Voltage Swing Load Current
±18V 125°C 25°C -55°C
125°C -55°C 25°C
AVCL ±15V
1124/25
ISINK ISOURCE OUTPUT CURRENT (mA)
1124/25
LT1124/LT1125
TYPICAL PERFOR CHARACTERISTICS
-0.5 -1.0
Common Mode Limit Temperature
CHANNEL SEPARATION (dB)
-1.5 -2.0 -2.5
CHANGE OFFSET VOLTAGE (µV)
COMMON MODE LIMIT REFERRED POWER SUPPLY
-18V
TEMPERATURE (°C)
Total Harmonic Distortion Noise Frequency Noninverting Gain
TOTAL HARMONIC DISTORTION NOISE
TOTAL HARMONIC DISTORTION NOISE
TOTAL HARMONIC DISTORTION NOISE
0.010
2k/15pF 20VP-P +10, +100 MEASUREMENT BANDWIDTH 10Hz 80kHz +100
0.001
0.0001
FREQUENCY (Hz)
Total Harmonic Distortion Noise Output Amplitude Noninverting Gain
TOTAL HARMONIC DISTORTION NOISE
2k/15pF 1kHz +10, +100 MEASUREMENT BANDWIDTH 10Hz 22kHz +100 0.010 0.001
TOTAL HARMONIC DISTORTION NOISE
INTERMODULATION DISTORTION (IMD)(%)
0.0001
OUTPUT SWING (VP-P)
*See LT1115 data sheet definition CCIF testing
1124/25 1124/25
Channel Separation Frequency
LIMITED THERMAL INTERACTION
Warm-Up Drift
±15V 25°C PACKAGE
±15V VOUT 7VP-P 25°C LIMITED CAPACITANCE
PACKAGES
100k FREQUENCY (Hz) TIME AFTER POWER (MINUTES)
1124/25
1124/25
1124/25
Total Harmonic Distortion Noise Frequency Inverting Gain
2k/15pF 20Vp-p -10, -100 MEASUREMENT BANDWIDTH 10Hz 80kHz
Total Harmonic Distortion Noise Frequency Competitive Devices
2k/15pF 20Vp-p MEASUREMENT BANDWIDTH 10Hz 80kHz
0.010
0.010
-100 0.001
OP270 OP27 0.001 LT1124
0.0001
FREQUENCY (Hz)
1124/25
0.0001
FREQUENCY (Hz)
1124/25
Total Harmonic Distortion Noise Output Amplitude Inverting Gain
2k/15pF 1kHz -10, -100 MEASUREMENT BANDWIDTH 10Hz 22kHz
0.010
Intermodulation Distortion (CCIF Method)* Frequency LT1124 OP270
2k/15pF (IM) 1kHz 13.5kHz 20Vp-p MEASUREMENT BANDWIDTH 10Hz 80kHz
0.010
-100
0.001
OP270
0.001
LT1124
0.0001
OUTPUT SWING (Vp-p)
1124/25
0.0001
FREQUENCY (Hz)
1124/25
LT1124/LT1125
APPLICATI ATIO
LT1124 inserted directly into OP-270 sockets. LT1125 plugs into OP-470 sockets. course, standard dual quad bipolar amps also replaced these devices. Matching Specifications many applications performance system depends matching between amps, rather than individual characteristics devices. three instrumentation amplifier configuration shown this data sheet example. Matching characteristics 100% tested LT1124/LT1125. Some specifications guaranteed definition. example, 70µV maximum offset voltage implies that mismatch cannot more than 140µV. 112dB 2.5µV/V) CMRR means that worst case CMRR match 106dB
50k*
100*
50k*
VOUT 1000VOS *RESISTORS MUST HAVE THERMOELECTRIC POTENTIAL
Figure Test Circuit Offset Voltage Offset Voltage Drift with Temperature
Table Expected Match
LT1124AC/AM LT1125AC/AM PARAMETER Match, LT1124 LT1125 Temperature Coefficient Match Average Noninverting Match Noninverting CMRR Match PSRR Match YIELD 0.35 YIELD YIELD LT1124C/M LT1125C/M YIELD UNITS µV/°C
(5µV/V). However, Table used estimate expected matching performance between sides LT1124, between amplifiers between amplifiers LT1125. Offset Voltage Drift Thermocouple effects, caused temperature gradients across dissimilar metals contacts input terminals, exceed inherent drift amplifier unless proper care exercised. currents should minimized, package leads should short, input leads should close together maintained same temperature. circuit shown Figure measure offset voltage also used burn-in configuration LT1124/ LT1125, with supply voltages increased ±16V.
VOUT
-15V
1124/25
LT1124/LT1125
APPLICATI ATIO
High Speed Operation When feedback around resistive (RF), pole will created with source resistance capacitance (RS, CS), amplifier input capacitance (CIN 2pF). closed loop gain configurations with kilohm range, this pole create excess phase shift even oscillation. small capacitor (CF) parallel with eliminates this problem (see Figure With CIN) effect feedback pole completely removed.
OUTPUT
1124/25
Figure High Speed Operation
Unity Gain Buffer Applications When input driven with fast, large signal pulse (>1V), output waveform will look shown Figure
OUTPUT 4.5V/µs
1124/25
Figure Unity-Gain Buffer Applications
During fast feedthrough-like portion output, input protection diodes effectively short output input current, limited only output short circuit protection, will drawn signal generator. With 500, output capable handling current requirements 20mA 10V) amplifier stays active mode smooth transition will occur. Noise Testing Each individual amplifier tested 4.2nV/Hz voltage noise; i.e., LT1124 tests, LT1125 four tests performed. Noise testing competing multiple amps, done all, sample tested tested using circuit shown Figure (enA)2 (enB)2 (enC)2 (enD)2 LT1125 were tested this way, noise limit would (4.2nV/Hz)2 8.4nV/Hz. this effective screen? What three four amplifiers typical 2.7nV/Hz, fourth contaminated 6.9nV/Hz noise? (2.7)2 (2.7)2 (2.7)2 (6.9)2 8.33nV/Hz This passes 8.4nV/Hz spec, amplifiers over LT1125 spec limit. Clearly, proper noise measurement, amps have tested individually.
1124/25
Figure Competing Quad Noise Test Method
LT1124/LT1125
PERFOR PARISO
Table summarizes performance LT1124/ LT1125 compared cost grades alternate approaches. comparison shows specs LT1124/ LT1125 only stand industry standard OP-27,
Table Guaranteed Performance, ±15V, 25°C, Cost Devices
PARAMETER/UNITS Voltage Noise, 1kHz Slew Rate Gain Bandwidth Product Offset Voltage Offset Current Bias Current Supply Current/Amp Voltage Gain, Common Mode Rejection Ratio Power Supply Rejection Ratio SO-8 Package LT1124 LT1125 LT1124 LT1125 LT1124CN8 LT1125CN 100% Tested 100% Tested 100% Tested 2.75 LT1124 OP-27 Sample Tested Tested Tested 5.67 OP-270 Limit Limit 3.25 0.35 OP-470 Sample Tested Limit 1000 2.75 UNITS nV/Hz V/µs V/µV
TYPICAL APPLICATI
Gain Error Frequency Closed-Loop Gain 1000
TYPICAL PRECISION
Gain 1000 Amplifier with 0.01% Accuracy,
340k TRIM
(S0-8) (N8) (SO-8) (N8) OUTPUT
LT1124 -15V
GAIN ERROR (PERCENT)
RN60C FILM RESISTORS INPUT
HIGH GAIN WIDE BANDWIDTH LT1124/LT1125, USEFUL FREQUENCY HIGH CLOSED-LOOP GAIN AMPLIFIER APPLICATIONS. TYPICAL PRECISION HAVE OPEN-LOOP GAIN MILLION WITH 500kHz BANDWIDTH. GAIN ERROR PLOT SHOWS, THIS DEVICE CAPABLE 0.1% AMPLIFYING ACCURACY 0.3Hz ONLY. EVEN INSTRUMENTATION RANGE SIGNALS VARY FASTER RATE. LT1124/LT1125 "GAIN PRECISION BANDWIDTH PRODUCT" TIMES HIGHER, SHOWN.
1124/25 TA03
most cases superior. Normally dual quad performance degraded when compared singles, LT1124/LT1125 this case.
LT1124/LT1125 0.01 GAIN ERROR 0.001 CLOSED-LOOP GAIN OPEN-LOOP GAIN
1124/25 TA04
FREQUENCY (Hz)
LT1124/LT1125
SCHE ATIC DIAGRA
200pF
NONINVERTING INPUT
67pF 200µA 200µA 100µA 20pF
INVERTING INPUT
(1/2 LT1124, LT1125)
360µA
570µA
100µA
3.6k
3.6k
35pF
OUTPUT
1124/25
LT1124/LT1125
PACKAGE DESCRIPTIO
Dimensions inches (millimeters) unless otherwise noted. Package 8-Lead CERDIP (Narrow 0.300, Hermetic)
(LTC 05-08-1110)
CORNER LEADS OPTION PLCS)
0.005 (0.127)
0.405 (10.287)
0.023 0.045 (0.584 1.143) HALF LEAD OPTION 0.045 0.068 (1.143 1.727) FULL LEAD OPTION 0.300 (0.762 BSC)
0.025 (0.635)
0.220 0.310 (5.588 7.874)
0.200 (5.080) 0.015 0.060 (0.381 1.524)
0.008 0.018 (0.203 0.457)
NOTE: LEAD DIMENSIONS APPLY SOLDER DIP/PLATE PLATE LEADS
0.045 0.068 (1.143 1.727) 0.014 0.026 (0.360 0.660)
0.125 3.175 0.100 0.010 (2.540 0.254) 1197
Package 8-Lead PDIP (Narrow 0.300)
(LTC 05-08-1510)
0.400* (10.160)
0.255 0.015* (6.477 0.381)
0.300 0.325 (7.620 8.255)
0.130 0.005 (3.302 0.127)
0.045 0.065 (1.143 1.651)
0.009 0.015 (0.229 0.381)
0.065 (1.651) 0.125 (3.175) 0.020 (0.508) 0.018 0.003 (0.457 0.076) 1197
+0.035 0.325 -0.015 8.255 +0.889 -0.381
0.100 0.010 (2.540 0.254)
*THESE DIMENSIONS INCLUDE MOLD FLASH PROTRUSIONS. MOLD FLASH PROTRUSIONS SHALL EXCEED 0.010 INCH (0.254mm)
LT1124/LT1125
PACKAGE DESCRIPTIO
Dimensions inches (millimeters) unless otherwise noted.
Package 8-Lead Plastic Small Outline (Narrow 0.150)
(LTC 05-08-1610)
0.189 0.197* (4.801 5.004)
0.228 0.244 (5.791 6.197)
0.150 0.157** (3.810 3.988)
0.010 0.020 (0.254 0.508) 0.008 0.010 (0.203 0.254) 0.053 0.069 (1.346 1.752)
0.004 0.010 (0.101 0.254)
0.016 0.050 0.406 1.270
0.014 0.019 (0.355 0.483)
0.050 (1.270)
*DIMENSION DOES INCLUDE MOLD FLASH. MOLD FLASH SHALL EXCEED 0.006" (0.152mm) SIDE **DIMENSION DOES INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL EXCEED 0.010" (0.254mm) SIDE
0996
LT1124/LT1125
PACKAGE DESCRIPTIO
Dimensions inches (millimeters) unless otherwise noted. Package 14-Lead CERDIP (Narrow 0.300, Hermetic)
(LTC 05-08-1110)
0.785 (19.939)
0.005 (0.127)
0.025 (0.635)
0.220 0.310 (5.588 7.874)
0.300 (0.762 BSC)
0.200 (5.080) 0.015 0.060 (0.381 1.524)
0.008 0.018 (0.203 0.457)
0.045 0.068 (1.143 1.727) NOTE: LEAD DIMENSIONS APPLY SOLDER DIP/PLATE PLATE LEADS 0.014 0.026 (0.360 0.660)
0.100 0.010 (2.540 0.254)
0.125 (3.175)
1197
Package 14-Lead PDIP (Narrow 0.300)
(LTC 05-08-1510)
0.770* (19.558)
0.255 0.015* (6.477 0.381)
0.300 0.325 (7.620 8.255) 0.130 0.005 (3.302 0.127) 0.020 (0.508) 0.009 0.015 (0.229 0.381)
0.045 0.065 (1.143 1.651)
0.065 (1.651) 0.125 (3.175) 0.018 0.003 (0.457 0.076)
1197
0.005 (0.125) 0.100 0.010 (2.540 0.254) *THESE DIMENSIONS INCLUDE MOLD FLASH PROTRUSIONS. MOLD FLASH PROTRUSIONS SHALL EXCEED 0.010 INCH (0.254mm)
+0.035 0.325 -0.015 8.255 +0.889 -0.381
LT1124/LT1125
PACKAGE DESCRIPTIO
Dimensions inches (millimeters) unless otherwise noted.
Package 16-Lead Plastic Small Outline (Wide 0.300)
(LTC 05-08-1620)
0.398 0.413* (10.109 10.490)
NOTE
0.394 0.419 (10.007 10.643)
0.291 0.299** (7.391 7.595) 0.010 0.029 (0.254 0.737)
0.093 0.104 (2.362 2.642)
0.037 0.045 (0.940 1.143)
0.009 0.013 (0.229 0.330)
NOTE 0.016 0.050 (0.406 1.270)
0.050 (1.270)
0.004 0.012 (0.102 0.305)
NOTE: IDENT, NOTCH CAVITIES BOTTOM PACKAGES MANUFACTURING OPTIONS. PART SUPPLIED WITH WITHOUT OPTIONS *DIMENSION DOES INCLUDE MOLD FLASH. MOLD FLASH SHALL EXCEED 0.006" (0.152mm) SIDE **DIMENSION DOES INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL EXCEED 0.010" (0.254mm) SIDE
0.014 0.019 (0.356 0.482)
(WIDE) 0396
Information furnished Linear Technology Corporation believed accurate reliable. However, responsibility assumed use. Linear Technology Corporation makes representation that interconnection circuits described herein will infringe existing patent rights.
LT1124/LT1125
TYPICAL APPLICATION
Strain Gauge Signal Conditioner with Bridge Excitation
2.5V LT1009
LT1125
-15V
BRIDGE 301k* ZERO TRIM *RN60C FILM RESISTORS -15V
LT1125
RELATED PARTS
PART NUMBER LT1007 LT1028/LT1128 LT1112/LT1114 LT1113 LT1126/LT1127 LT1169 LT1792 LT1793 DESCRIPTION Single Noise, Precision Single Noise, Precision Amps Dual/Quad Precision Picoamp Input Dual Noise JFET Decompensated LT1124/LT1125 Dual Noise JFET Single LT1113 Single LT1169 COMMENTS 2.5nV/Hz 1kHz Voltage Noise 0.85nV/Hz Voltage Noise 250pA 4.5nV/Hz Voltage Noise, 10fA/Hz Current Noise 11V/µs Slew Rate 6nV/Hz Voltage Noise, 1fA/Hz Current Noise, 10pA 4.2nV/Hz Voltage Noise, 10fA/Hz Current Noise 6nV/Hz Voltage Noise, 1fA/Hz Current Noise, 10pA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, 95035-7417
(408)432-1900 FAX: (408) 434-0507 www.linear-tech.com
LT1124/LT1125 CAPABLE PROVIDING EXCITATION CURRENT DIRECTLY BIAS BRIDGE WITH ONLY ACROSS BRIDGE OPPOSED USUAL 10V) TOTAL POWER DISSIPATION BRIDGE WARM-UP DRIFT REDUCED. BRIDGE OUTPUT SIGNAL HALVED, LT1124/LT1125 AMPLIFY REDUCED SIGNAL ACCURATELY.
REFERENCE OUTPUT
LT1125 -15V GAIN TRIM OUTPUT 301k*
499*
1124/25 TA05
11245fas, sn11245 LT/TP 0699 PRINTED
LINEAR TECHNOLOGY CORPORATION 1992
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