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INA122UA
Single Supply, MicroPower INSTRUMENTATION AMPLIFIER
FEATURES
● LOW QUIESCENT CURRENT: 60µA
● WIDE POWER SUPPLY RANGE Single Supply: 2.2V to 36V Dual Supply: –0.9/+1.3V to ±18V
● COMMON-MODE RANGE TO (V–)–0.1V
● RAIL-TO-RAIL OUTPUT SWING
● LOW OFFSET VOLTAGE: 250µV max
● LOW OFFSET DRIFT: 3µV/°C max
● LOW NOISE: 60nV/√Hz
● LOW INPUT BIAS CURRENT: 25nA max
● 8-PIN DIP AND SO-8 SURFACE-MOUNT
APPLICATIONS
● PORTABLE, BATTERY OPERATED SYSTEMS
● INDUSTRIAL SENSOR AMPLIFIER: Bridge, RTD, Thermocouple
● PHYSIOLOGICAL AMPLIFIER: ECG, EEG, EMG
● MULTI-CHANNEL DATA ACQUISITION
DESCRIPTION
The INA122 is a precision instrumentation amplifier for accurate, low noise differential signal acquisition. Its two-op-amp design provides excellent performance with very low quiescent current, and is ideal for portable instrumentation and data acquisition systems. The INA122 can be operated with single power supplies from 2.2V to 36V and quiescent current is a mere 60µA. It can also be operated from dual supplies. By utilizing an input level-shift network, input commonmode range extends to 0.1V below negative rail (single supply ground).
A single external resistor sets gain from 5V/V to 10000V/V. Laser trimming provides very low offset voltage (250µV max), offset voltage drift (3µV/°C max) and excellent common-mode rejection. Package options include 8-pin plastic DIP and SO-8 surface-mount packages. Both are specified for the –40°C to +85°C extended industrial temperature range.
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INA122UA Single Supply, MicroPower INSTRUMENTATION AMPLIFIER high definition audio realtek Images
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