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OPA128

Part Number	OPA128
Manufacturer	Burr-Brown
Description	Difet Electrometer-Grade OPERATIONAL AMPLIFIER
Published	May 13, 2005
Detailed Description	® OPA128 Difet ® Electrometer-Grade OPERATIONAL AMPLIFIER FEATURES q ULTRA-LOW BIAS CURRENT: 75fA max q q q q LOW OFFS...
Datasheet	OPA128 PDF File

Overview

® OPA128 Difet ® Electrometer-Grade OPERATIONAL AMPLIFIER FEATURES q ULTRA-LOW BIAS CURRENT: 75fA max q q q q LOW OFFSET: 500µV max LOW DRIFT: 5µV/°C max HIGH OPEN-LOOP GAIN: 110dB min HIGH COMMON-MODE REJECTION: 90dB min APPLICATIONS q ELECTROMETER q q q q q MASS SPECTROMETER CHROMATOGRAPH ION GAUGE PHOTODETECTOR RADIATION-HARD EQUIPMENT q IMPROVED REPLACEMENT FOR AD515 AND AD549 DESCRIPTION The OPA128 is an ultra-low bias current monolithic operational amplifier.
Using advanced geometry dielectrically-isolated FET (Difet®) inputs, this monolithic amplifier achieves a performance level exceeding even the best hybrid electrometer amplifiers.
Laser-trimmed thin-film resistors give outsta...

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