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Analog current-sense amplifiers

INA4180

ACTIVE

26V, quad channel, 350kHz current sense amplifier

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Data sheet

INA4180

ACTIVE
Data sheet Order now

Product details

Product type Analog output Common-mode voltage (max) (V) 26 Common-mode voltage (min) (V) -0.2 Input offset (±) (max) (µV) 150 Input offset drift (±) (typ) (µV/°C) 0.2 Voltage gain (V/V) 20, 50, 100, 200 CMRR (min) (dB) 84 Bandwidth (kHz) 105, 150, 210, 350 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7 Iq (max) (mA) 1 Number of channels 4 Comparators (#) 0 Gain error (%) 1 Gain error drift (±) (max) (ppm/°C) 20 Slew rate (V/µs) 2 Features Low-side Capable, Quad channel Rating Catalog Operating temperature range (°C) -40 to 125
Product type Analog output Common-mode voltage (max) (V) 26 Common-mode voltage (min) (V) -0.2 Input offset (±) (max) (µV) 150 Input offset drift (±) (typ) (µV/°C) 0.2 Voltage gain (V/V) 20, 50, 100, 200 CMRR (min) (dB) 84 Bandwidth (kHz) 105, 150, 210, 350 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7 Iq (max) (mA) 1 Number of channels 4 Comparators (#) 0 Gain error (%) 1 Gain error drift (±) (max) (ppm/°C) 20 Slew rate (V/µs) 2 Features Low-side Capable, Quad channel Rating Catalog Operating temperature range (°C) -40 to 125
TSSOP (PW) 14 32 mm² 5 x 6.4
  • 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)
  • 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)

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.

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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Technical documentation

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Type Title Date
* Data sheet INAx180 Low- and High-Side Voltage Output, Current-Sense Amplifiers datasheet (Rev. H) PDF | HTML 19 Jul 2022
Application note Current Sensing Applications in Communication Infrastructure Equipment (Rev. B) PDF | HTML 10 Mar 2022
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 25 Jan 2022
Application note Common Uses for Multichannel Current Monitoring (Rev. A) PDF | HTML 27 Sep 2021
Selection guide Current Sense Amplifiers (Rev. E) 20 Sep 2021
E-book Simplifying Current Sensing (Rev. A) 09 Jan 2020
EVM User's guide INA4180-INA4181 Evaluation Module User's Guide (Rev. A) 18 Jul 2018
Application note Closed-Loop Analysis of Load-Induced Amplifier Stability Issues Using Zout 27 Oct 2017
Application note Low-Side Current Sense Circuit Integration 30 Mar 2017

Design & development

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

Evaluation board

INA4180-4181EVM — INA4180 & INA4181 Current Sense Amplifier Evaluation Module

The INA4180 is an integrated current sense monitor solution that provides ease of use and high performance for cost-sensitive applications. The INA4181 shares the same capabilities with the support for bidirectional current measurements. The INA4180-4181EVM is intended to provide basic functional (...)
User guide: PDF
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Simulation model

INA180 PSpice Model (Rev. A)

SBOMAD0A.ZIP (119 KB) - PSpice Model
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Simulation model

INA180 TINA-TI Reference Design (Rev. A)

SBOMAD1A.TSC (2797 KB) - TINA-TI Reference Design
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Simulation model

INA180 TINA-TI Spice Model (Rev. A)

SBOMAD2A.ZIP (37 KB) - TINA-TI Spice Model
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Simulation model

INA180A1 PSpice Model

SBOMBC4.ZIP (18 KB) - PSpice Model
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Simulation model

INA180A2 PSpice Model

SBOMBB4.ZIP (20 KB) - PSpice Model
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Simulation model

INA180A3 PSpice Model

SBOMBB5.ZIP (20 KB) - PSpice Model
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Simulation model

INA180A4 PSpice Model

SBOMBB6.ZIP (20 KB) - PSpice Model
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Calculation tool

CS-AMPLIFIER-ERROR-TOOL — Current sense amplifier comparison and error tool

This Excel calculator provides a comparison between two and five of our standard current sense amplifiers, delivering a chart containing the basic parameters of each device. This calculator also takes system condition inputs from users such as common-mode voltage, supply voltage, shunt resistor (...)
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Design tool

CIRCUIT060035 — Bidirectional current sensing with a window comparator circuit

This bidirectional current sensing solution uses a current-sense amplifier and a high-speed dual comparator with a rail-to-rail input common mode range to create over-current (OC) alert signals at the comparator outputs (OUTA and OUTB) if the input current (IG1) rises above 100 A or falls below (...)
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Design tool

CIRCUIT060037 — Precision over-current latch circuit

This high-side, current sensing solution uses a current sense amplifier, a comparator with an integrated reference and a P-channel MOSFET to create an over-current latch circuit. When a load current greater than 200 mA is detected, the circuit disconnects the system from its power source. The (...)
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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 (...)
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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
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Reference designs

TIDA-00302 — Current Shunt Monitor with Transient Robustness Reference Design

This high-side current shunt monitor is used to measure the voltage developed across a current-sensing resistor when current passes through it.

Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)

Design guide: PDF
Schematic: PDF
Package Pins Download
TSSOP (PW) 14 View options
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