OPA991 opamp equivalent, low-noise opamp.
* 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 bia.
* Low-power audio preamplifier
* Multiplexed data-acquisition systems
* Test and measurement equipment
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The OPAx991 family (OPA991, OPA2991, and OPA4991) is a family of high voltage (40-V) general purpose operational amplifiers. These devices offer exceptional DC precision and AC performance, including rail-to-rail input/output, low offset (±125 µV, t.
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