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OPA170

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36V, microPower, Rail-to-Rail Output, General Purpose Op Amp in MicroPackages

Data sheet
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Exact equivalent in functionality and parametrics to the compared device:
OPA990 ACTIVE Single 1MHz, 40-V rail-to-rail input/output, low-offset-voltage, low-power op amp Pin-to-pin upgrade with improved performance: lower Vos(1.5mV), higher slew rate(4.5V/us) and output current(80mA)
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36V, microPower, Rail-to-Rail Output, General Purpose Op Amp in MicroPackages

OPA170

ACTIVE
Data sheet Order now

Product details

Parameters

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 open-in-new Find other General-purpose op amps

Package | Pins | Size

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 open-in-new Find other General-purpose op amps

Features

  • 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

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Description

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
* Datasheet OPAx170 36-V, Single-Supply, SOT553, Low-Power Operational Amplifiers Value Line Series datasheet (Rev. E) Apr. 25, 2018
Application note Inverting Summer Circuit (Rev. C) Feb. 01, 2021
Application note AN-31 Amplifier Circuit Collection (Rev. D) Oct. 21, 2020
Technical articles What is an op amp? Jan. 21, 2020
Application note Transimpedance amplifier circuit. (Rev. A) Feb. 01, 2019
E-book Analog Engineer’s Pocket Reference Guide Fifth Edition (Rev. C) Nov. 30, 2018
Technical articles How to lay out a PCB for high-performance, low-side current-sensing designs Feb. 06, 2018
Technical articles Low-side current sensing for high-performance cost-sensitive applications Jan. 22, 2018
Technical articles Voltage and current sensing in HEV/EV applications Nov. 22, 2017
E-book The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
More literature Precision Amplifier Quickstart Kit brochure (Rev. A) Jan. 13, 2015
Application note Combined Voltage and Current Output with the DACx760 Jul. 24, 2014
Application note OPA170, OPA2170, OPA4170 EMI Immunity Performance (Rev. A) Nov. 03, 2012
Application note Compensate Transimpedance Amplifiers Intuitively (Rev. A) Mar. 30, 2005

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
29
Description

The TI Precision Amplifier Quickstart Kit simplifies op amp selection, design, and evaluation with samples of six op amps and an evaluation module for prototyping surface-mount ICs. The kit is the perfect starting point for your amplifier designs.

You may also be interested in TI Precision Labs, the (...)

Features

The kit includes:

  • Six samples: Three low-power, low-voltage amplifiers and three low-power, wide-supply amplifiers. See the table below for the complete list.
  • DIP Adapter Evaluation Module (DIP-ADAPTER-EVM) for prototyping surface-mount ICs. The EVM supports the following package types: D or U (...)
View details
EVALUATION BOARD Download
document-generic User guide
10
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
View details
EVALUATION BOARD Download
document-generic User guide
Description
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 12 (...)
Features
  • 3 packages to choose from: SC70-5, SOT23-5 and SOIC-8
  • 12 circuit configurations to choose from: Noninverting, Inverting, Active Filters, Difference Amp, Comparator and more!
  • Dual and single supply configurations
  • PCB designed for High performance: Optimized for each function
  • Multiple interface options (...)
View details

Design tools & simulation

SIMULATION MODEL Download
SBOM466B.ZIP (9 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBOM467B.TSC (1103 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBOMAB8A.ZIP (13 KB) - PSpice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
View details
SIMULATION TOOL 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 TOOL 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
  • (...)
View details
DESIGN TOOL Download
Transimpedance Amplifier Circuit
CIRCUIT0020 — 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 (...)
Features
  • Uses a JFET or CMOS input op amp with low bias current to reduce DC errors
  • A bias voltage can be added to the non-inverting input to set the output
  • Operates within the linear output voltage swing (see Aol specification) to minimize non-linearity errors

View Important Notice covering authorized use (...)

View details
DESIGN TOOL Download
SBOC494.ZIP (29 KB)
DESIGN TOOL Download
SBOC501.ZIP (97 KB)
DESIGN TOOL Download
SBOC561.ZIP (42 KB)
DESIGN TOOL Download
SBOMAK6.ZIP (9 KB)

Reference designs

REFERENCE DESIGNS Download
Highly Efficient, Versatile Bi-Directional Power Converter for Energy Storage and DC Home Solutions
TIDA-00476 — 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 DC-DC (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Combined Voltage/Current Output with Surge Protection Reference Design
TIDA-00559 — The TIDA-00559 TI Design 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 to 10-V or for 4 to 20-mA. Usage in harsh industrial environment is addressed by a dedicated (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
24V/1.45A AC/DC Flyback PSU Optimized for Low AC Line Input Reference Design
PMP7174 — 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 (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
SOT-23 (DBV) 5 View options
SOT-5X3 (DRL) 5 View options

Ordering & quality

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  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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