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OPA990 ACTIVE Single, 40-V, 1.1-MHz, low-power operational amplifier Pin-to-pin upgrade with improved performance: lower Vos(1.5mV), higher slew rate(4.5V/us) and output current(80mA)

Product details

Number of channels (#) 1 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Rail-to-rail In to V-, Out GBW (Typ) (MHz) 1.2 Slew rate (Typ) (V/us) 0.4 Vos (offset voltage @ 25 C) (Max) (mV) 1.8 Iq per channel (Typ) (mA) 0.1 Vn at 1 kHz (Typ) (nV/rtHz) 19 Rating Catalog Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 0.3 Features EMI Hardened, Small Size Input bias current (Max) (pA) 15 CMRR (Typ) (dB) 120 Output current (Typ) (mA) 17 Architecture CMOS
Number of channels (#) 1 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Rail-to-rail In to V-, Out GBW (Typ) (MHz) 1.2 Slew rate (Typ) (V/us) 0.4 Vos (offset voltage @ 25 C) (Max) (mV) 1.8 Iq per channel (Typ) (mA) 0.1 Vn at 1 kHz (Typ) (nV/rtHz) 19 Rating Catalog Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 0.3 Features EMI Hardened, Small Size Input bias current (Max) (pA) 15 CMRR (Typ) (dB) 120 Output current (Typ) (mA) 17 Architecture CMOS
SOIC (D) 8 19 mm² 4.9 x 3.9 SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 SOT-5X3 (DRL) 5 2 mm² 1.65 x 1.2
  • Supply Range: 2.7 V to 36 V, ±1.35 V to ±18 V
  • Low Noise: 19 nV/√Hz
  • RFI Filtered Inputs
  • Input Range Includes the Negative Supply
  • Input Range Operates to Positive Supply
  • Rail-to-Rail Output
  • Gain Bandwidth: 1.2 MHz
  • Low Quiescent Current: 110 µA per Amplifier
  • High Common-Mode Rejection: 120 dB
  • Low Bias Current: 15 pA (Maximum)
  • Industry-Standard Packages and micro Packages Available
  • Create a Custom Design Using the OPAx170 With the WEBENCH® Power Designer
  • Supply Range: 2.7 V to 36 V, ±1.35 V to ±18 V
  • Low Noise: 19 nV/√Hz
  • RFI Filtered Inputs
  • Input Range Includes the Negative Supply
  • Input Range Operates to Positive Supply
  • Rail-to-Rail Output
  • Gain Bandwidth: 1.2 MHz
  • Low Quiescent Current: 110 µA per Amplifier
  • High Common-Mode Rejection: 120 dB
  • Low Bias Current: 15 pA (Maximum)
  • Industry-Standard Packages and micro Packages Available
  • Create a Custom Design Using the OPAx170 With the WEBENCH® Power Designer

The OPA170, OPA2170, and OPA4170 devices (OPAx170) are a family of 36-V, single-supply, low-noise operational amplifiers (op amps) that feature micro packages with the ability to operate on supplies ranging from 2.7 V (±1.35 V) to 36 V (±18 V). They offer good offset, drift, and bandwidth with low quiescent current. The single, dual, and quad versions all have identical specifications for maximum design flexibility.

Unlike most op amps, which are specified at only one supply voltage, the OPAx170 family of op amps is specified from 2.7 V to 36 V. Input signals beyond the supply rails do not cause phase reversal. The OPAx170 family is stable with capacitive loads up to 300 pF. The input can operate 100 mV below the negative rail and within 2 V of the positive rail for normal operation. Note that these devices can operate with full rail-to-rail input 100 mV beyond the positive rail, but with reduced performance within 2 V of the positive rail. The OPAx170 op amps are specified from –40°C to +125°C.

The OPA170, OPA2170, and OPA4170 devices (OPAx170) are a family of 36-V, single-supply, low-noise operational amplifiers (op amps) that feature micro packages with the ability to operate on supplies ranging from 2.7 V (±1.35 V) to 36 V (±18 V). They offer good offset, drift, and bandwidth with low quiescent current. The single, dual, and quad versions all have identical specifications for maximum design flexibility.

Unlike most op amps, which are specified at only one supply voltage, the OPAx170 family of op amps is specified from 2.7 V to 36 V. Input signals beyond the supply rails do not cause phase reversal. The OPAx170 family is stable with capacitive loads up to 300 pF. The input can operate 100 mV below the negative rail and within 2 V of the positive rail for normal operation. Note that these devices can operate with full rail-to-rail input 100 mV beyond the positive rail, but with reduced performance within 2 V of the positive rail. The OPAx170 op amps are specified from –40°C to +125°C.

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Technical documentation

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Type Title Date
* Data sheet OPAx170 36-V, Single-Supply, SOT553, Low-Power Operational Amplifiers Value Line Series datasheet (Rev. E) PDF | HTML 25 Apr 2018
Circuit design Inverting Summer Circuit (Rev. C) PDF | HTML 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
Circuit design Transimpedance amplifier circuit. (Rev. A) 01 Feb 2019
E-book Analog Engineer’s Pocket Reference Guide Fifth Edition (Rev. C) 30 Nov 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
Technical article Voltage and current sensing in HEV/EV applications 22 Nov 2017
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
More literature Precision Amplifier Quickstart Kit brochure (Rev. A) 13 Jan 2015
Application note Combined Voltage and Current Output with the DACx760 24 Jul 2014
Application note OPA170, OPA2170, OPA4170 EMI Immunity Performance (Rev. A) 03 Nov 2012
Application note Compensate Transimpedance Amplifiers Intuitively (Rev. A) 30 Mar 2005

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

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

The 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 available in three industry-standard packages (SC70, SOT23, SOIC) and (...)
Simulation model

OPA170 TINA-TI Spice Model (Rev. B)

SBOM466B.ZIP (9 KB) - TINA-TI Spice Model
Simulation model

OPA170 TINA-TI Reference Design (Rev. B)

SBOM467B.TSC (1103 KB) - TINA-TI Reference Design
Simulation model

OPA170 PSpice Model (Rev. C)

SBOMAB8C.ZIP (23 KB) - PSpice Model
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
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 op-amp gain with feedback (...)
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Design tool

CIRCUIT0020 — Transimpedance Amplifier Circuit

The transimpedance op amp circuit configuration converts an input current source into an output voltage. The current to voltage gain is based on the feedback resistance. The circuit is able to maintain a constant voltage bias across the input source as the input current changes which benefits many (...)
Design tool

CIRCUIT060013 — Inverting amplifier with T-network feedback circuit

This design inverts the input signal, VIN, and applies a signal gain of 1000 V/V or 60 dB. The inverting amplifier with T-feedback network can be used to obtain a high gain without a small value for R4 or very large values for the feedback resistors.
Design tool

CIRCUIT060015 — Adjustable reference voltage circuit

This circuit combines an inverting and non-inverting amplifier to make a reference voltage adjustable from the negative of the input voltage up to the input voltage. Gain can be added to increase the maximum negative reference level.
Design tool

CIRCUIT060023 — Inverting summer circuit

This design sums (adds) and inverts two input signals, Vi1 and Vi2. The input signals typically come from lowimpedance sources because the input impedance of this circuit is determined by the input resistors, R1 and R2. The common-mode voltage of an inverting amplifier is equal to the voltage (...)
Design tool

CIRCUIT060074 — High-side current sensing with comparator circuit

This high-side, current sensing solution uses one comparator with a rail-to-rail input common mode range to create an over-current alert (OC-Alert) signal at the comparator output (COMP OUT) if the load current rises above 1 A. The OC-Alert signal in this implementation is active low. So when the (...)
Design tool

Simulation for Inverting Summer Circuit

SBOC494.ZIP (29 KB)
Design tool

Simulation for Transimpedance Amplifier

SBOC501.ZIP (97 KB)
Design tool

Transimpedance Amplifier Circuit

SBOMAK6.ZIP (9 KB)
Reference designs

TIDA-00476 — Highly Efficient, Versatile Bi-Directional Power Converter for Energy Storage and DC Home Solutions

TIDA-00476 is comprised of a single DC-DC power stage, which can work as a synchronous buck converter or a synchronous boost converter, enabling bidirectional power flow between DC power source and energy storage system. Operating in synchronous buck mode, the system works as a MPPT controlled (...)
Schematic: PDF
Reference designs

TIDA-00559 — Combined Voltage/Current Output with Surge Protection Reference Design

TIDA-00559 provides a universal analog output (AO) for industrial sensors and transmitters. It is based on a 16-bit DAC and uses a single output. This common output is user-configurable for 0 V to 10 V or for 4 ma to 20 mA. Usage in harsh industrial environments is addressed by a dedicated (...)
Schematic: PDF
Reference designs

PMP7174 — 24V/1.45A AC/DC Flyback PSU Optimized for Low AC Line Input Reference Design

This design is a compact, low AC line input (Maximum 130Vac) Flyback converter which provides a regulated and fully-isolated 24V@1.45A output. Featuring TI's LM5021 current mode controller working at 135kHz, the converter features fast start-up and delivers greater than 85% efficiency from 30-100% (...)
Schematic: PDF
Package Pins Download
SOIC (D) 8 View options
SOT-23 (DBV) 5 View options
SOT-5X3 (DRL) 5 View options

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