OPA990, OPA2990, OPA4990
SBOS933H – FEBRUARY 2019 – REVISED MAY 2021
OPAx990 40-V Rail-to-Rail Input/Output, Low Offset Voltage, Low Power Op Amp
1 Features
3 Description
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Low offset voltage: ±300 µV
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).
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
Unique features such as differential and common-
mode input voltage range to the supply rail, high
short-circuit current (±80 mA), high slew rate (4.5 V/
µs), and shutdown make the OPAx990 an extremely
flexible, robust, and high-performance op amp for
high-voltage industrial applications.
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Wide bandwidth: 1.1-MHz GBW
High slew rate: 4.5 V/µs
The OPAx990 family of op amps is available in
micro-size packages (such as X2QFN, WSON, and
SOT-553), as well as standard packages (such as
SOT-23, SOIC, and TSSOP), and is specified from
–40°C to 125°C.
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
Device Information
2 Applications
PART NUMBER(1)
PACKAGE
BODY SIZE (NOM)
2.90 mm × 1.60 mm
2.90 mm × 1.60 mm
2.00 mm × 1.25 mm
1.60 mm × 1.20 mm
4.90 mm × 3.90 mm
2.90 mm × 1.60 mm
3.00 mm × 4.40 mm
3.00 mm × 3.00 mm
3.00 mm × 3.00 mm
2.00 mm × 2.00 mm
2.00 mm × 1.50 mm
8.65 mm × 3.90 mm
5.00 mm × 4.40 mm
3.00 mm × 3.00 mm
2.00 mm × 2.00 mm
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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
SOT-23 (5)
SOT-23 (6)
SC70 (5)
OPA990
SOT-553 (5)(2)
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SOIC (8)
SOT-23 (8)
TSSOP (8)
VSSOP (8)(2)
VSSOP (10)
WSON (8)
X2QFN (10)
SOIC (14)
OPA2990
OPA4990
TSSOP (14)
WQFN (16)
X2QFN (14)
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
(2) This package is preview only.
Analog Inputs
REF3140
RC Filter
OPA375
RC Filter
Bridge Sensor
Reference Driver
Gain Network
Gain Network
OPA990
+
MUX509
Thermocouple
REF
+
OPA990
VINP
Gain Network
Antialiasing
Filter
OPA990
+
ADS8860
Current Sensing
VINM
Photo
Detector
LED
High-Voltage Multiplexed Input
High-Voltage Level Translation
VCM
Optical Sensor
OPAx990 in a High-Voltage, Multiplexed, Data-Acquisition System
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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