LINEAR TECHNOLOGY LT1024 Data Sheet

LT1024 Dual, Matched

Picoampere, Microvolt Input,

Low Noise Op Amp

FEATURES DESCRIPTIO

®1024 dual, matched internally compensated

Guaranteed Offset Voltage: 50µV Max The LT Guaranteed Bias Current: universal precision operational amplifier can be used in 25°C: 120p A Max practically all precision applications requiring multiple op –55°C to 125°C: 700p A Max amps. The LT1024 combines picoampere bias currents Guaranteed Drift: 1.5µV/°C Max (which are maintained over the full –55°C to 125°C Low Noise, 0.1Hz to 10Hz: 0.5µVP-P temperature range), microvolt offset voltage (and low drift Guaranteed Supply Current: 600µA Max with time and temperature), low voltage and current Guaranteed CMRR: 112d B Min noise and low power dissipation. Extremely high Guaranteed PSRR: 112d B Min common mode and power supply rejection ratios, Guaranteed Voltage Gain with 5m A Load Current practically immeasurable warm-up drift, and the ability to Guaranteed Matching Characteristics deliver 5m A load current with a voltage gain of a million, round out the LT1024’s superb precision specifications. APPLICATIO S Tight matching is guaranteed on offset voltage, noninverting bias currents and common mode and power

IN PU BI AS UR RE NT (p A)

Strain Gauge Signal Conditioner supply rejections. Dual Limit Precision Threshold Detection

The all-around excellence of the LT1024 eliminates the

Charge Integrators

necessity of the time-consuming error analysis procedure

Wide Dynamic Range Logarithmic Amplifiers

of precision system design in many dual applications; the

Light Meters

LT1024 can be stocked as the universal dual op amp in the

Low Frequency Active Filters

14-pin DIP configuration.

Standard Cell Buffers

Thermocouple Amplifiers For a single op amp with similar specifications, see the , LTC and LT are registered trademarks of Linear Technology Corporation. LT1012 data sheet; for a single supply dual precision op amp in the 8-pin configuration, see the LT1013 data sheet.

TYPICAL APPLICATIO

Two Op Amp Instrumentation Amplifier Input Bias Current vs Temperature

R1* R2 100k 10k UNDERCANCELLED UNIT

OVERCANCELLED UNIT

1/2 LT1024

1/2 LT1024 OUTPUT

INPUTS

TYPICAL PERFORMANCE:

OFFSET VOLTAGE = 20µV –150

R4 R2 R3 R2 + R3 –50 –25 GAIN = ~ 1001 + 1 BIAS CURRENT = ±30p A R3 R1 R4 R5

OFFSET CURRENT = 30p A TEMPERATURE (°C)

LTC1024 • TA02

TRIM FOR COMMON-MODE REJECTION TRIM FOR GAIN

LT1024 • TA01

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