OPA4990中文资料德州仪器数据手册PDF规格书

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

• 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 (40 V)

general purpose operational amplifiers. These devices

offer excellent DC precision and AC performance,

including rail-to-rail input or output, low offset (±300

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

Unique features such as differential and commonmode

input voltage range to the supply rail, high

short-circuit current (±80 mA), and high slew rate (4.5

V/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.