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Product details

Parameters

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 Shutdown CMRR (Typ) (dB) 115 Output current (Typ) (mA) 80 Architecture CMOS open-in-new Find other General-purpose op amps

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 SOT-23-THN (DDF) 8 8 mm² 2.9 x 2.8 TSSOP (PW) 8 19 mm² 3 x 6.4 VSSOP (DGS) 10 - VSSOP (DGS) 10 9 mm² 3 x 3 WSON (DSG) 8 4 mm² 2 x 2 open-in-new Find other General-purpose op amps

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

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Description

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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Sample availability

Preproduction samples in DGS package (POPA2990SIDGSR) and DDF package (POPA2990IDDFR) are available . Request now

Technical documentation

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Type Title Date
* Datasheet OPAx990 40-V Rail-to-Rail Input/Output, Low Offset Voltage, Low Power Op Amp datasheet (Rev. F) May 18, 2020
Technical articles What is an op amp? Jan. 21, 2020
Technical articles Simplify your bill of materials with high-voltage amplifiers Apr. 18, 2019
Application notes Using an Operational Amplifier as a Low Cost Multiplexer (Rev. A) Apr. 09, 2019
Application notes Using An Op Amp for High-Side Current Sensing Mar. 22, 2019
Application notes AN-31 amplifier circuit collection (Rev. C) Mar. 04, 2019
Application notes High-side current-sensing circuit design (Rev. A) Feb. 13, 2019
Application notes MUX-friendly precision operational amplifiers (Rev. A) Feb. 11, 2019
Technical articles Designing tiny microphone circuits with the industry’s smallest op amp Apr. 12, 2018
Technical articles How to lay out a PCB for high-performance, low-side current-sensing designs Feb. 06, 2018

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

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 (...)

Features
  • Simplifies prototyping of SMT IC’s
  • Supports 6 common package types
  • Low Cost
EVALUATION BOARDS Download
document-generic User guide
$20.00
Description
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 (...)
Features
  • 10 circuit configurations to choose from: Non-Inverting, Inverting, Active Filters, Difference Amplifier with Reference Buffer, and more!
  • Multiple interface options: SMA, Header, Breadboard, Wire
  • Designed for 0805 size components; 0603 size friendly
  • Circuit schematic provided in silkscreen on the back (...)
EVALUATION BOARDS Download
document-generic User guide
Description

The Universal OPAMPEVM is a series of general purpose blank circuit boards that simplify prototyping circuits for a variety of IC package types. The evaluation module board design allows many different circuits to be constructed easily and quickly. Five models are offered with each targeted for (...)

EVALUATION BOARDS Download
SMALL-AMP-DIP-EVM
SMALL-AMP-DIP-EVM
document-generic User guide
$20.00
Description
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 (...)
Features
  • Simplifies prototyping of small package ICs
  • Supports 8 small package types

Design tools & simulation

SIMULATION MODELS Download
SBOMAN6A.ZIP (18 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOMAN7A.ZIP (3 KB) - PSpice Model
SIMULATION MODELS Download
SBOMAN9A.ZIP (4 KB) - Macromodels
SIMULATION MODELS Download
SBOMAV4.ZIP (9 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOMB44.TSC (61 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOMB45.ZIP (4 KB) - Macromodels
SIMULATION MODELS Download
SBOMB46.ZIP (3 KB) - PSpice Model
SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI 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 (...)
document-generic User guide
CALCULATION TOOLS Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — 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 op-amp gain with feedback (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)
DESIGN TOOLS Download
High-side current sensing with discrete difference amplifier circuit
CIRCUIT060005 — This single–supply, high–side, low–cost current sensing solution detects load current between 50mA and 1A and converters it to an output voltage from 0.25V to 5V. High–side sensing allows for the system to identify ground shorts and does not create a ground disturbance on the load.
document-generic User guide
Features
  • Single 36V supply 
  • Input: 50mA to 1A 
  • Output: 0.25V to 5V

Reference designs

REFERENCE DESIGNS Download
High-efficiency, low-emission, isolated DC/DC converter-based analog input module reference design
TIDA-010065 — 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 for (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
SOT-23-THIN (DDF) 8 View options
TSSOP (PW) 8 View options
VSSOP (DGS) 10 View options
WSON (DSG) 8 View options

Ordering & quality

Support & training

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