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OPA2991 - Low-Noise OpAmp

This page provides the datasheet information for the OPA2991, a member of the OPA991 Low-Noise OpAmp family.

Datasheet Summary

Description

The OPAx991 family (OPA991, OPA2991, and OPA4991) is a family of high voltage (40-V) general purpose operational amplifiers.

Features

  • Low offset voltage: ±125 µV.
  • Low offset voltage drift: ±0.3 µV/°C.
  • Low noise: 10.8 nV/√ Hz at 1 kHz.
  • High common-mode rejection: 130 dB.
  • Low bias current: ±10 pA.
  • Rail-to-rail input and output.
  • Wide bandwidth: 4.5 MHz GBW.
  • High slew rate: 21 V/µs.
  • High capacitive load drive: 1 nF.
  • MUX-friendly/comparator inputs.
  • Amplifier operates with differential inputs up to supply rail.
  • Amplifier can.

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Datasheet preview – OPA2991

Datasheet Details

Part number OPA2991
Manufacturer Texas Instruments
File Size 5.37 MB
Description Low-Noise OpAmp
Datasheet download datasheet OPA2991 Datasheet
Additional preview pages of the OPA2991 datasheet.

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Full PDF Text Transcription

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www.ti.com OPA991, OPA2991, OPA4991 SBOS969D – OOCTPOAB9E9R12,0O19P–AR2E9V9IS1E,DOJPUALY42909210 SBOS969D – OCTOBER 2019 – REVISED JULY 2020 OPAx991 40-V Rail-to-Rail Input/Output, Low Offset Voltage, Low Noise Op Amp 1 Features • Low offset voltage: ±125 µV • Low offset voltage drift: ±0.3 µV/°C • Low noise: 10.8 nV/√ Hz at 1 kHz • High common-mode rejection: 130 dB • Low bias current: ±10 pA • Rail-to-rail input and output • Wide bandwidth: 4.5 MHz GBW • High slew rate: 21 V/µs • High capacitive load drive: 1 nF • MUX-friendly/comparator inputs – Amplifier operates with differential inputs up to supply rail – Amplifier can be used in open-loop or as comparator • Low quiescent current: 560 µA per amplifier • Wide supply: ±1.35 V to ±20 V, 2.
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