Maximize your system with
current sense amplifiers

Current and power measurement for real-time system protection, feedback control and high-accuracy system monitoring

Analog Output

Integrate the full analog signal processing and provide a voltage or current output

Integrated comparator

Provides a simple ALERT signal when the load current exceeds a threshold

Power / Current Monitors

Integrate the full signal conditioning path and utilize a standard 2-wire digital interface

Integrated Shunt

Offers a low-drift, precision integrated sense element

Featured TI Designs reference designs


Three-phase, AC-current measurements using a current transformer

High-accuracy, wide-range AC current measurement for a three-phase motor

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Automotive precision eFuse

Demonstrates a replacement to the traditional fuse, offering higher accuracy overcurrent protection

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30A range, bidirectional current shunt monitor

Accurately measures current across a range of 30A on a bus that carries up to 36-V common mode voltage from -40°C to +85°C

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50mA-20A, single-supply, low-side or high-side current sensing

Achieve a wide-dynamic-range current-sensing solution with a current sense amplifier and overcurrent protection comparator

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-48V telecom current/voltage/ power sense with IF isolation

Accurately measure current, voltage and power on a bus that carries -48V; data is communicated using an I2C interface

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40V to 400V uni-directional current/voltage/power monitoring

Measure current, voltage and power on a bus as high as 400V using an I2C- or SMBUS-compatible interface

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Featured technical resources

Online training series

Online training series

15 short videos to get started with current sense amplifiers

Watch and learn

Overcurrent protection white paper

Overcurrent protection white paper

Learn about different techniques for overcurrent protection design

Download white paper (PDF, 1.11MB)

Current sense amplifiers guide

Current sense amplifier guide

Featured TI Designs reference designs and current sense amplifier products

Download guide (PDF, 1.10MB)

TI's current sense amplifiers provide high-precision, low-cost current measurement and power measurement by amplifying the differential voltage drop across a shunt resistor from mA to 100s A. Current sense amplifiers, also called current shunt monitors, are specialized differential amplifiers with a precisely matched resistive gain network. Current sense amplifiers are used in systems to provide real-time overcurrent protection (OCP), monitor current and power to optimize system efficiency or provide current measurement for closed loop circuits.