1 Features

• Low offset voltage: ±300μV

• Low offset voltage drift: ±0.6μV/°C

• Low noise: 30 nV/√Hz at 1kHz

• High common-mode rejection: 115dB

• Low bias current: ±10pA

• 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: 1.1MHz GBW

• High slew rate: 4.5V/μs

• Low quiescent current: 120μA per amplifier

• Wide supply: ±1.35V to ±20V, 2.7V to 40V

• Robust EMIRR performance: 78dB at 1.8GHz

• Differential and common-mode input voltage range

to supply rail

2 Applications

• Optimized for AEC-Q100 grade 1 applications

• HEV/EV inverter and motor control

• On-board (OBC) and wireless charger

• HEV/EV battery-management system (BMS)

• Body electronics and lighting

• Infotainment and cluster

• Passive safety

• Powertrain current sensor

• High-side current sensing

3 Description

The OPAx990-Q1 family (OPA990-Q1, OPA2990-Q1,

and OPA4990-Q1) is a family of high voltage (40V)

general purpose operational amplifiers. These devices

offer excellent DC precision and AC performance,

including rail-to-rail input or output, low offset

(±300μV, typ), and low offset drift (±0.6μV/°C, typ).

Unique features such as differential and commonmode

input voltage range to the supply rail, high

short-circuit current (±80mA), and high slew rate

(4.5V/μs) make the OPAx990-Q1 an extremely

flexible, robust, and high-performance op amp for

high-voltage automotive applications.

The OPAx990-Q1 family of op amps is available in

several standard packages (such as, SOT-23, SOIC,

and TSSOP) and is specified from –40°C to 125°C.