Description
® INA 121 INA121 INA 121 FET-Input, Low Power INSTRUMENTATION AMPLIFIER .
The INA121 is a FET-input, low power instrumentation amplifier offering excellent accuracy.
Features
* q LOW BIAS CURRENT: ±4pA q LOW QUIESCENT CURRENT: ±450µA q LOW INPUT OFFSET VOLTAGE: ±200µV q LOW INPUT OFFSET DRIFT: ±2µV/°C q LOW INPUT NOISE: 20nV/√Hz at f = 1kHz (G =100) q HIGH CMR: 106dB q WIDE SUPPLY RANGE: ±2.25V to ±18V q LOW NONLINEARITY ERROR: 0.001% max q INPUT PROTECTION TO ±40V q 8-PIN
Applications
* Low bias current (±4pA) allows use with high impedance sources. Gain can be set from 1V to 10,000V/V with a single external resistor. Internal input protection can withstand up to ±40V without damage. The INA121 is laser-trimmed for very low offset voltage (±200µV), low offset drift (±2µV/°C), and