SP Amp INSTR Amp Single 18V

The Instrumentation Amplifier ICs amplify the difference between two input signal voltages, while rejecting any signals that are common to both inputs. The DC precision and gain accuracy is maintained within a noisy environment, and also where large common-mode signals (AC power line frequency) are present.

The Texas Instruments INA121 is a FET-input, low power instrumentation amplifier offering excellent accuracy. Its versatile three-op amp design and very small size make it ideal for a variety of general purpose applications. Low bias current (±4pA) allows use with high impedance sources.

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LOW BIAS CURRENT: ±4pA
LOW QUIESCENT CURRENT: ±450μA
LOW INPUT OFFSET VOLTAGE: ±200μV
LOW INPUT OFFSET DRIFT: ±2μV/°C
LOW INPUT NOISE: 20nV/sqrt(Hz) at f = 1kHz (G =100)
HIGH CMR: 106dB
WIDE SUPPLY RANGE: ±2.25V to ±18V
LOW NONLINEARITY ERROR: 0.001% max
INPUT PROTECTION TO ±40V
8-PIN DIP AND SO-8 SURFACE MOUNT

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Instrumentation Amplifiers, Texas Instruments

Instrumentation amplifiers are composite differential amplifier blocks generally incorporating a classic three operational amplifier configuration. They provide high input impedance, very high common-mode rejection and allow differential gain to be accurately set via internal or external resistors. Differential amplifiers offer low DC offset and drift coupled with high open loop gain and low noise and are frequently used in high-precision test and measurement applications and electrically noisy environments.