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Product details

Parameters

Common mode voltage (Max) (V) 26 Common mode voltage (Min) (V) -0.2 Input offset (+/-) (Max) (uV) 150 Input offset drift (+/-) (Typ) (uV/C) 0.2 Gain (V/V) 100, 20, 200, 50 Gain error (%) 1 Gain error drift (+/-) (Max) (ppm/°C) 20 CMRR (Min) (dB) 84 Bandwidth (kHz) 350, 210, 150, 105 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 0.3 Number of channels (#) 1 Comparators (#) 0 Features Low-side Capable Rating Catalog Operating temperature range (C) -40 to 125 open-in-new Find other Current sense amplifiers analog output

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Current sense amplifiers analog output

Features

  • Common-mode range (VCM): –0.2 V to +26 V
  • High bandwidth: 350 kHz (A1 devices)
  • Offset voltage:
    • ±150 µV (maximum) at VCM = 0 V
    • ±500 µV (maximum) at VCM = 12 V
  • Output slew rate: 2 V/µs
  • Accuracy:
    • ±1% gain error (maximum)
    • 1-µV/°C offset drift (maximum)
  • Gain options:
    • 20 V/V (A1 devices)
    • 50 V/V (A2 devices)
    • 100 V/V (A3 devices)
    • 200 V/V (A4 devices)
  • Quiescent current: 260 µA maximum (INA180)

All trademarks are the property of their respective owners.

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Description

The INA180, INA2180, and INA4180 (INAx180) current sense amplifiers are designed for cost-optimized applications. These devices are part of a family of current-sense amplifiers (also called current-shunt monitors) that sense voltage drops across current-sense resistors at common-mode voltages from –0.2 V to +26 V, independent of the supply voltage. The INAx180 integrate a matched resistor gain network in four, fixed-gain device options: 20 V/V, 50 V/V, 100 V/V, or 200 V/V. This matched gain resistor network minimizes gain error and reduces the temperature drift.

All these devices operate from a single 2.7-V to 5.5-V power supply. The single-channel INA180 draws a maximum supply current of 260 µA; whereas, the dual-channel INA2180 draws a maximum supply current of 500 µA, and the quad channel draws a maximum supply current of 900 µA.

The INA180 is available in a 5-pin, SOT-23 package with two different pin configurations. The INA2180 is available in 8-pin, VSSOP and WSON packages. The INA4180 is available in a 14-pin, TSSOP package. All device options are specified over the extended operating temperature range of –40°C to +125°C.

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Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
INA181 ACTIVE 26V, bi-directional, 350kHz current sense amplifier The INA181 offers the same performance supporting bi-directional measurement
INA2180 ACTIVE 26V, dual channel, 350kHz current sense amplifier The INA2180 is a dual version of the INA180 offering identical functionality
INA4180 ACTIVE 26V, quad channel, 350kHz current sense amplifier The INA4180 is a quad version of the INA180 offering identical functionality

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 13
Type Title Date
* Datasheet INAx180 Low- and High-Side Voltage Output, Current-Sense Amplifiers datasheet (Rev. G) Apr. 13, 2020
Technical articles How current-sense amplifiers monitor satellite health Feb. 08, 2021
Application note Current Sensing Applications in Communication Infrastructure Equipment (Rev. A) Dec. 29, 2020
E-book Simplifying Current Sensing (Rev. A) Jan. 09, 2020
Application note Low-side current shunt monitor circuit to 3-V single-ended ADC Jun. 06, 2019
Application note Fast-response overcurrent event detection circuit May 27, 2019
Technical articles A key to accurate system thermal management: monitoring both current flow and temperature Oct. 04, 2018
Selection guide Current Sense Amplifiers (Rev. D) Apr. 04, 2018
Application note Closed-Loop Analysis of Load-Induced Amplifier Stability Issues Using Zout Oct. 27, 2017
Technical articles System trade-offs for high- and low-side current measurements Jun. 01, 2017
Application note Low-Side Current Sense Circuit Integration Mar. 30, 2017
Technical articles Why should you care about overcurrent protection in your system? Jun. 16, 2016
User guide INA180-181 EVM User's Guide Jan. 19, 2016

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
10
Description
The INA180 is an Op-Amp current sense integration circuit that provides ease of use and high performancce. The INA181 has the same capabilities of the INA180 but with the addition of the reference pin that enables bidirectional current measurements. The INA180-181EVM is intended to provide basic (...)
Features
  • Evaluation of all gain options for the INA180Ax and INA181Ax
  • Ease of access to device pins with test points
  • Capability to evaluate high-side and low-side configurations
EVALUATION BOARD Download
document-generic User guide
149
Description

The TPS63802HDKEVM is a universal development tool designed to help the users easily and quickly evaluate and test the most common buck-boost converter use-cases. The use-cases include backup power, input current limit, LED driver, digital voltage scaling, bypass mode and precise enable. The user (...)

Features
  • Universal Tool to test most common buck-boost converter use-cases
  • Use-cases: backup power, input current limit, LED driver, digital voltage scaling, bypass mode and precise enable
  • Change quickly between use-cases without soldering
  • All use-cases are tested and the user guide includes quick-start (...)

Design tools & simulation

SIMULATION MODEL Download
SBOMAD0A.ZIP (119 KB) - PSpice Model
SIMULATION MODEL Download
SBOMAD1A.TSC (2797 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBOMAD2A.ZIP (37 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBOMBB4.ZIP (20 KB) - PSpice Model
SIMULATION MODEL Download
SBOMBB5.ZIP (20 KB) - PSpice Model
SIMULATION MODEL Download
SBOMBB6.ZIP (20 KB) - PSpice Model
SIMULATION MODEL Download
SBOMBC4.ZIP (18 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
  • (...)
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
SBOR020A.ZIP (525 KB)

Reference designs

Many TI reference designs include the INA180 Use our reference design selection tool to review and identify designs that best match your application and parameters.

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

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  • Ongoing reliability monitoring

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