OPA2990

OPA990, OPA2990, OPA4990 SBOS933I – FEBRUARY 2019 – REVISED AUGUST 2021 OPAx990 40-V Rail-to-Rail Input/Output, Low Offset Voltage, Low Power Op Amp 1 Features Low offset voltage: ±300 µV Low offset voltage drift: ±0.6 µV/°C Low noise: 30 nV/√Hz at 1 kHz High common-mode rejection: 115 dB Low bias current: ±10 pA Rail-to-rail input and output MUX-friendly/comparator inputs – Amplifier operates with differential inputs up to supply rail – Amplifier can be used in open-loop or as comparator Wide bandwidth: 1.1-MHz GBW High slew rate: 4.5 V/µs Low quiescent current: 120 µA per amplifier Wide supply: ±1.35 V to ±20 V, 2.7 V to 40 V Robust EMIRR performance: 78 dB at 1.8 GHz Differential and common-mode input voltage range to supply rail 2 Applications Multiplexed data-acquisition systems Test and measurement equipment Motor drive: power stage and control modules Power delivery: UPS, server, and merchant network power ADC driver and reference buffer amplifier Programmable logic controllers Analog input and output modules High-side and low-side current sensing High precision comparator 3 Description The OPAx990 family (OPA990, OPA2990, and OPA4990) is a family of high voltage (40 V) general purpose operational amplifiers. These devices offer excellent DC precision and AC performance, including rail-to-rail input/output, low offset (±300 µV, typ), and low offset drift (±0.6 µV/°C, typ). Unique features such as differential and commonmo...