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Analog current-sense amplifiers

INA282

ACTIVE

-14 to 80V, bi-directional current sense amplifier

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INA296B ACTIVE -5-V to 110-V, bidirectional, 1.1-MHz 8-V/µs high-precision current sense amplifier Improved full-scale accuracy, increased bandwidth and a wider common-mode voltage range.

INA282

ACTIVE
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Product details

Product type Analog output Common-mode voltage (max) (V) 80 Common-mode voltage (min) (V) -14 Input offset (±) (max) (µV) 70 Input offset drift (±) (typ) (µV/°C) 0.3 Features Bidirectional, Low-side Capable Rating Catalog Voltage gain (V/V) 50 CMRR (min) (dB) 120 Bandwidth (kHz) 10 Iq (max) (mA) 0.9 Number of channels 1 Comparators (#) 0 Gain error (%) 1.4 Gain error drift (±) (max) (ppm/°C) 50 Slew rate (V/µs) 0.2 Operating temperature range (°C) -40 to 125
Product type Analog output Common-mode voltage (max) (V) 80 Common-mode voltage (min) (V) -14 Input offset (±) (max) (µV) 70 Input offset drift (±) (typ) (µV/°C) 0.3 Features Bidirectional, Low-side Capable Rating Catalog Voltage gain (V/V) 50 CMRR (min) (dB) 120 Bandwidth (kHz) 10 Iq (max) (mA) 0.9 Number of channels 1 Comparators (#) 0 Gain error (%) 1.4 Gain error drift (±) (max) (ppm/°C) 50 Slew rate (V/µs) 0.2 Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm)
  • Wide Common-Mode Range: –14 V to +80 V
  • Offset Voltage: ±20 µV
  • CMRR: 140 dB
  • Accuracy:
    • ±1.4% Gain Error (Max)
    • 0.3 µV/°C Offset Drift
    • 0.005%/°C Gain Drift (Max)
  • Available Gains:
    • 50 V/V: INA282
    • 100 V/V: INA286
    • 200 V/V: INA283
    • 500 V/V: INA284
    • 1000 V/V: INA285
  • Quiescent Current: 900 µA (Max)
  • Wide Common-Mode Range: –14 V to +80 V
  • Offset Voltage: ±20 µV
  • CMRR: 140 dB
  • Accuracy:
    • ±1.4% Gain Error (Max)
    • 0.3 µV/°C Offset Drift
    • 0.005%/°C Gain Drift (Max)
  • Available Gains:
    • 50 V/V: INA282
    • 100 V/V: INA286
    • 200 V/V: INA283
    • 500 V/V: INA284
    • 1000 V/V: INA285
  • Quiescent Current: 900 µA (Max)

The INA28x family includes the INA282, INA283, INA284, INA285, and INA286 devices. These devices are voltage output current shunt monitors that can sense drops across shunts at common-mode voltages from –14 V to +80 V, independent of the supply voltage. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10 mV full-scale.

These current sense amplifiers operate from a single +2.7-V to +18-V supply, drawing a maximum of 900 µA of supply current. These devices are specified over the extended operating temperature range of –40°C to +125°C, and offered in SOIC-8 and VSSOP-8 packages.

The INA28x family includes the INA282, INA283, INA284, INA285, and INA286 devices. These devices are voltage output current shunt monitors that can sense drops across shunts at common-mode voltages from –14 V to +80 V, independent of the supply voltage. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10 mV full-scale.

These current sense amplifiers operate from a single +2.7-V to +18-V supply, drawing a maximum of 900 µA of supply current. These devices are specified over the extended operating temperature range of –40°C to +125°C, and offered in SOIC-8 and VSSOP-8 packages.
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Technical documentation

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* Data sheet INA28x High-Accuracy, Wide Common-Mode Range, Bidirectional Current Shunt Monitors, Zero-Drift Series datasheet (Rev. C) PDF | HTML May 12, 2015
Application note Using a PCB Copper Trace as a Current Sense Shunt Resistor (Rev. A) PDF | HTML Apr 27, 2026
Application brief Current Mode Control in Switching Power Supplies (Rev. E) PDF | HTML Apr 12, 2023
Application brief Low-Drift, Precision, In-Line Motor Current Measurements With PWM Rejection (Rev. D) PDF | HTML Apr 7, 2023
E-book An Engineer's Guide to Current Sensing (Rev. B) Apr 12, 2022
Selection guide Current Sense Amplifiers (Rev. E) Sep 20, 2021
Selection guide Power Management Guide 2018 (Rev. R) Jun 25, 2018
Application note Hybrid Battery Charger with Load Control for Telecom Equipments (Rev. A) May 9, 2018
Application note Closed-Loop Analysis of Load-Induced Amplifier Stability Issues Using Zout Oct 27, 2017
Application brief Benefits of Intergated Low Inductive Shunt for PWM Applications Jun 17, 2017
Application brief Precision LED Brightness and Color Mixing With Discrete Current Sense Amplifiers Feb 28, 2017
Technical article How to get started with current sense amplifiers – part 4 PDF | HTML Jul 16, 2015
Technical article How to get started with current sense amplifiers – part 3 PDF | HTML Jul 9, 2015
Technical article How to get started with current sense amplifiers – part 2 PDF | HTML May 26, 2015
Technical article How to get started with current sense amplifiers – part 1 PDF | HTML May 19, 2015
Design guide EMC Compliant High-Side Current Sensing With Overvoltage Protection Design Guide Feb 13, 2014

Design & development

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

Evaluation board

INA282-286EVM — INA282-286 Evaluation Module

The INA282-286EVM is intended to provide basic functional evaluation of this device family. The fixture layout is not intended to be a model for the target circuit, nor is it laid out for electromagnetic compatibility (EMC) testing. The INA282-286EVM allows the user to install a shunt resistor, (...)

User guide: PDF
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Simulation model

INA282 PSpice Model (Rev. B)

SBOM447B.ZIP (1227 KB) - PSpice model
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Simulation model

INA282 TINA-TI Reference Design

SBOM449.TSC (144 KB) - TINA-TI reference design
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Simulation model

INA282 TINA-TI Spice Model

SBOM448.TSM (26 KB) - TINA-TI Spice model
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Calculation tool

ANALOG-ENGINEER-CALC — PC software 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 operational-amplifier (...)

Supported products & hardware
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 (...)
Supported products & hardware
Reference design

TIDA-00126 — EMC Compliant High Side Current Sensing Reference Design with Overvoltage Protection

This reference design focuses on high-side current measurement using a family of TI's voltage output current shunt monitors. It can be used for measuring high-side current in industrial applications, where the common-mode dynamics can drop below ground. Overall the design helps designers build (...)

Supported products & hardware
Reference design

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 (...)

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Package Pins CAD symbols, footprints & 3D models
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
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