Product details

Number of channels (#) 2 Total supply voltage (Max) (+5V=5, +/-5V=10) 40 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Rail-to-rail In, Out GBW (Typ) (MHz) 1.1 Slew rate (Typ) (V/us) 4.5 Vos (offset voltage @ 25 C) (Max) (mV) 1.5 Iq per channel (Typ) (mA) 0.12 Vn at 1 kHz (Typ) (nV/rtHz) 30 Rating Catalog Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 0.6 Features EMI Hardened, High Cload Drive, MUX Friendly, Shutdown, Small Size CMRR (Typ) (dB) 115 Output current (Typ) (mA) 80 Architecture CMOS
Number of channels (#) 2 Total supply voltage (Max) (+5V=5, +/-5V=10) 40 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Rail-to-rail In, Out GBW (Typ) (MHz) 1.1 Slew rate (Typ) (V/us) 4.5 Vos (offset voltage @ 25 C) (Max) (mV) 1.5 Iq per channel (Typ) (mA) 0.12 Vn at 1 kHz (Typ) (nV/rtHz) 30 Rating Catalog Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 0.6 Features EMI Hardened, High Cload Drive, MUX Friendly, Shutdown, Small Size CMRR (Typ) (dB) 115 Output current (Typ) (mA) 80 Architecture CMOS
SOIC (D) 8 19 mm² 4.9 x 3.9 SOT-23-THN (DDF) 8 5 mm² 2.9 x 1.6 TSSOP (PW) 8 19 mm² 3 x 6.4 VSSOP (DGK) 8 15 mm² 3 x 4.9 VSSOP (DGS) 10 9 mm² 3 x 3 WSON (DSG) 8 4 mm² 2 x 2 X2QFN (RUG) 10 3 mm² 1.5 x 2
  • 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
  • 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

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 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.

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.

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 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.

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.

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Technical documentation

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Type Title Date
* Data sheet OPAx990 40-V Rail-to-Rail Input/Output, Low Offset Voltage, Low Power Op Amp datasheet (Rev. I) PDF | HTML 13 Aug 2021
Application note The Davies Sinusoidal Generator PDF | HTML 31 Oct 2022
Application note MUX-Friendly, Precision Operational Amplifiers (Rev. C) PDF | HTML 08 Feb 2022
Application note Using An Op Amp for High-Side Current Sensing (Rev. A) PDF | HTML 07 Dec 2021
Application note Circuit for detecting input floating on ADS8681 ADC PDF | HTML 31 Mar 2021
Third party documents Programmable analog output circuit maximizes industrial system flexibility 01 Feb 2021
Application note AN-31 Amplifier Circuit Collection (Rev. D) 21 Oct 2020
Technical article What is an op amp? 21 Jan 2020
Technical article Simplify your bill of materials with high-voltage amplifiers 18 Apr 2019
Application note Using an Operational Amplifier as a Low Cost Multiplexer (Rev. A) 09 Apr 2019
Circuit design High-side current-sensing circuit design (Rev. A) 13 Feb 2019
Analog Design Journal Second-sourcing options for small-package amplifiers 26 Mar 2018
Technical article How to lay out a PCB for high-performance, low-side current-sensing designs 06 Feb 2018
Technical article Low-side current sensing for high-performance cost-sensitive applications 22 Jan 2018

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

DIP-ADAPTER-EVM — DIP adapter evaluation module

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

User guide: PDF
Not available on TI.com
Evaluation board

DUAL-DIYAMP-EVM — Dual Channel Universal Do-It-Yourself (DIY) Amplifier Circuit Evaluation Module

The DUAL-DIYAMP-EVM is a unique evaluation module (EVM) family that provides engineers and do it yourselfers (DIYers) with real-world amplifier circuits, enabling you to quickly evaluate design concepts and verify simulations. It is designed specifically for dual package op amps in the (...)
User guide: PDF
Not available on TI.com
Evaluation board

SMALL-AMP-DIP-EVM — SMALL-AMP-DIP-EVM

The Small-Amp-DIP-EVM speeds up small package op amp prototyping by providing a fast and easy way to interface with many industry-standard small-size packages. The Small-Amp-DIP-EVM supports 8 small package options including: DPW-5 (X2SON), DSG-8 (WSON), DCN-8 (SOT), DDF-8 (SOT), RUG-10 (X2QFN), (...)
User guide: PDF
Not available on TI.com
Simulation model

Collection of test circuits in TINA-TI to accompany AN1516 (Rev. A)

SBOMBI0A.ZIP (1293 KB) - TINA-TI Reference Design
Simulation model

OPA2990 PSpice Model (Rev. D)

SBOMAN7D.ZIP (22 KB) - PSpice Model
Simulation model

OPA2990 TINA-TI Reference Design (Rev. A)

SBOMAN6A.ZIP (18 KB) - TINA-TI Reference Design
Simulation model

OPA2990 TINA-TI SPICE Model (Rev. A)

SBOMAN9A.ZIP (4 KB) - TINA-TI Spice Model
Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
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Design tool

Simulation for Current Source in AN-31

SBOC559.ZIP (6 KB)
Design tool

Simulation for Power Booster in AN-31

SBOC586.ZIP (6 KB)
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
Reference designs

TIDA-010065 — High-efficiency, low-emission, isolated DC/DC converter-based analog input module reference design

This reference design is a simplified architecture for generating an isolated power supply for isolated amplifiers for measuring isolated voltages and currents. A fully integrated DC/DC converter with reinforced isolation operating from a 5-V input with configurable 5-V or 5.4-V output (headroom (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
SOIC (D) 8 View options
SOT-23-THIN (DDF) 8 View options
TSSOP (PW) 8 View options
VSSOP (DGK) 8 View options
VSSOP (DGS) 10 View options
WSON (DSG) 8 View options
X2QFN (RUG) 10 View options

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