Datasheet LT1012A, LT1012 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | Picoamp Input Current, Microvolt Offset, Low Noise Op Amp |
| Pages / Page | 20 / 1 — FEATURES. DESCRIPTIO. APPLICATIO S. TYPICAL APPLICATIO. 250V Common Mode … |
| File Format / Size | PDF / 348 Kb |
| Document Language | English |
FEATURES. DESCRIPTIO. APPLICATIO S. TYPICAL APPLICATIO. 250V Common Mode Range Instrumentation Amplifier (AV = 1)
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Text Version of Document
LT1012A/LT1012 Picoamp Input Current, Microvolt Offset, Low Noise Op Amp
U FEATURES DESCRIPTIO
■ OP-07 Type Performance: The LT®1012 is an internally compensated universal at 1/8th of OP-07’s Supply Current precision operational amplifier which can be used in at 1/20th of OP-07’s Bias and Offset Currents practically all precision applications. The LT1012 ■ Guaranteed Offset Voltage: 25µV Max combines picoampere bias currents (which are ■ Guaranteed Bias Current: 100pA Max maintained over the full –55°C to 125°C temperature ■ Guaranteed Drift: 0.6µV/°C Max range), microvolt offset voltage (and low drift with time ■ Low Noise, 0.1Hz to 10Hz: 0.5µVP-P and temperature), low voltage and current noise, and ■ Guaranteed Low Supply Current: 500µA Max low power dissipation. The LT1012 achieves precision ■ Guaranteed CMRR: 114dB Min operation on two Ni-Cad batteries with 1mW of power ■ Guaranteed PSRR: 114dB Min dissipation. Extremely high common mode and ■ Guaranteed Operation at ±1.2V Supplies power supply rejection ratios, practically unmeasurable
U
warm-up drift, and the ability to deliver 5mA load current
APPLICATIO S
with a voltage gain of one million round out the LT1012’s ■ superb precision specifications. Replaces OP-07 While Saving Power ■ Precision Instrumentation The all around excellence of the LT1012 eliminates the ■ Charge Integrators necessity of the time consuming error analysis procedure ■ Wide Dynamic Range Logarithmic Amplifiers of precision system design in many applications; the ■ Light Meters LT1012 can be stocked as the universal internally ■ Low Frequency Active Filters compensated precision op amp. ■ Thermocouple Amplifiers , LTC and LT are registered trademarks of Linear Technology Corporation. Protected by U. S. patents 4,575,685 and 4,775,884
U TYPICAL APPLICATIO
±
250V Common Mode Range Instrumentation Amplifier (AV = 1) Typical Distribution of Input Offset Voltage
R1 R5 1M 975k 200 –IN 3 4 1 1140 UNITS VS = ±15V FROM THREE TA = 25°C R2 6V TO 18V R6 50k OPTIONAL 160 RUNS VCM = 0V 20k 25k CMRR TRIM 2 7 – 2 6 120 R3 LT1012 OUT 1M 3 COMMON +IN 7 6 + MODE 4 80 R1 TO R6: VISHAY 444 INPUT R4 ACCUTRACT THIN FILM NUMBER OF UNITS ±250V 19.608k SIP NETWORK 40 – 6V TO –18V X : VISHAY 444 PIN NUMBERS 5 VISHAY INTERTECHNOLOGY, INC 63 LINCOLN HIGHWAY 0 MALVERN, PA 19355 –40 –20 0 20 40 INPUT OFFSET VOLTAGE (µV) COMMON MODE REJECTION RATIO = 74dB (RESISTOR LIMITED) LT1012A • TA02 WITH OPTIONAL TRIM = 130dB OUTPUT OFFSET (TRIMMABLE TO ZERO) = 500µV OUTPUT OFFSET DRIFT = 10µV/°C INPUT RESISTANCE = 1M LT1012A • TA01 sn1012 1012afbs 1
U FEATURES DESCRIPTIO
■ OP-07 Type Performance: The LT®1012 is an internally compensated universal at 1/8th of OP-07’s Supply Current precision operational amplifier which can be used in at 1/20th of OP-07’s Bias and Offset Currents practically all precision applications. The LT1012 ■ Guaranteed Offset Voltage: 25µV Max combines picoampere bias currents (which are ■ Guaranteed Bias Current: 100pA Max maintained over the full –55°C to 125°C temperature ■ Guaranteed Drift: 0.6µV/°C Max range), microvolt offset voltage (and low drift with time ■ Low Noise, 0.1Hz to 10Hz: 0.5µVP-P and temperature), low voltage and current noise, and ■ Guaranteed Low Supply Current: 500µA Max low power dissipation. The LT1012 achieves precision ■ Guaranteed CMRR: 114dB Min operation on two Ni-Cad batteries with 1mW of power ■ Guaranteed PSRR: 114dB Min dissipation. Extremely high common mode and ■ Guaranteed Operation at ±1.2V Supplies power supply rejection ratios, practically unmeasurable
U
warm-up drift, and the ability to deliver 5mA load current
APPLICATIO S
with a voltage gain of one million round out the LT1012’s ■ superb precision specifications. Replaces OP-07 While Saving Power ■ Precision Instrumentation The all around excellence of the LT1012 eliminates the ■ Charge Integrators necessity of the time consuming error analysis procedure ■ Wide Dynamic Range Logarithmic Amplifiers of precision system design in many applications; the ■ Light Meters LT1012 can be stocked as the universal internally ■ Low Frequency Active Filters compensated precision op amp. ■ Thermocouple Amplifiers , LTC and LT are registered trademarks of Linear Technology Corporation. Protected by U. S. patents 4,575,685 and 4,775,884
U TYPICAL APPLICATIO
±
250V Common Mode Range Instrumentation Amplifier (AV = 1) Typical Distribution of Input Offset Voltage
R1 R5 1M 975k 200 –IN 3 4 1 1140 UNITS VS = ±15V FROM THREE TA = 25°C R2 6V TO 18V R6 50k OPTIONAL 160 RUNS VCM = 0V 20k 25k CMRR TRIM 2 7 – 2 6 120 R3 LT1012 OUT 1M 3 COMMON +IN 7 6 + MODE 4 80 R1 TO R6: VISHAY 444 INPUT R4 ACCUTRACT THIN FILM NUMBER OF UNITS ±250V 19.608k SIP NETWORK 40 – 6V TO –18V X : VISHAY 444 PIN NUMBERS 5 VISHAY INTERTECHNOLOGY, INC 63 LINCOLN HIGHWAY 0 MALVERN, PA 19355 –40 –20 0 20 40 INPUT OFFSET VOLTAGE (µV) COMMON MODE REJECTION RATIO = 74dB (RESISTOR LIMITED) LT1012A • TA02 WITH OPTIONAL TRIM = 130dB OUTPUT OFFSET (TRIMMABLE TO ZERO) = 500µV OUTPUT OFFSET DRIFT = 10µV/°C INPUT RESISTANCE = 1M LT1012A • TA01 sn1012 1012afbs 1
