The INA125 is a low power, high accuracy instrumentation amplifier with a precision voltage reference. It provides complete bridge excitation and precision differential-input amplification on a single integrated circuit. A single external resistor sets any gain from 4 to 10,000. The INA125 is laser-trimmed for low offset voltage (250µV), low offset drift (2µV/°C), and high common-mode rejection (100dB at G = 100). It operates on single (+2.7V to +36V) or dual (±1.35V to ±18V) supplies. The voltage reference is externally adjustable with pin selectable voltages of 2.5V, 5V, or 10V, allowing use with a variety of transducers. The reference voltage is accurate to ±0.5% (max) with ±35ppm/°C drift (max). Sleep mode allows shutdown and duty cycle operation to save power
Features/Specs:
● LOW QUIESCENT CURRENT: 460µA
● PRECISION VOLTAGE REFERENCE:
1.24V, 2.5V, 5V or 10V
● SLEEP MODE
● LOW OFFSET VOLTAGE: 250µV max
● LOW OFFSET DRIFT: 2µV/°C max
● LOW INPUT BIAS CURRENT: 20nA max
● HIGH CMR: 100dB min
● LOW NOISE: 38nV/√Hz at f = 1kHz
● INPUT PROTECTION TO ±40V
● WIDE SUPPLY RANGE
Single Supply: 2.7V to 36V
Dual Supply: ±1.35V to ±18V
● 16-PIN DIP AND SO-16 SOIC PACKAGES
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