OPA4990中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

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.