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OPA128 - Difet Electrometer-Grade OPERATIONAL AMPLIFIER

This page provides the datasheet information for the OPA128, a member of the OPA128_Burr Difet Electrometer-Grade OPERATIONAL AMPLIFIER family.

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.

Features

  • q ULTRA-LOW BIAS.

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Datasheet preview – OPA128

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Full PDF Text Transcription

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® 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 outstanding voltage offset and drift performance.
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