FEATURES

? Low input bias current

? ±20 fA maximum at TA = 25°C (guaranteed at production test)

? ±20 fA maximum at ?40°C < TA < +85°C

? ±250 fA maximum at ?40°C < TA < +125°C (guaranteed at

production test)

? Low offset voltage: 50 μV maximum over specified CMRR range

? Offset voltage drift: ±0.13 μV/°C typical, ±0.5 μV/°C maximum

? Integrated guard buffer with 100 μV maximum offset

? Low voltage noise density: 14 nV/√Hz at 10 kHz

? Wide bandwidth: 2 MHz unity-gain crossover

? Supply voltage: 4.5 V to 16 V (±2.25 V to ±8 V)

? Operating temperature: ?40°C to +125°C

? Long-term offset voltage drift (10,000 hours): 0.5 μV typical

? Temperature hysteresis: 1.5 μV typical

APPLICATIONS

? Laboratory and analytical instrumentation: spectrophoto-meters,

chromatographs, mass spectrometers, and potentiostatic and

amperostatic coulometry

? Instrumentation: picoammeters and coulombmeters

? Transimpedance amplifier (TIA) for photodiodes, ion chambers,

and working electrode measurements

? High impedance buffering for chemical sensors and capacitive

sensors