Amplifiers

Maximize your system with current sense amplifiers

Current sensing solutions for protection, feedback control and 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

Search all current sense amplifiers

Featured technical resources

Browse current and power measurement use cases

15 short videos to get started with current sense amplifiers

Featured TI Designs reference designs and current sense amplifier products

Featured TI Designs reference designs

Solar MPPT Charge Controller

20A MPPT solar charge controller created for solar panel inputs corresponding to 12V and 24V panels

Automotive USB Charger with Linear Droop Compensation Reference Design

Provides detailed data for evaluating and verifying a USB charger

-48V Telecom Current/Voltage/Power Sense with Isolation

Ability to report current, voltage and power on a bus that carries -48V

Leakage Current Measurement for Determining Insulation Resistance

A reference solution to measure Insulation Resistance up to 100MΩ

24W Boost and Boost-to-Battery Reference Design for Automotive LED Lighting

24W, high-efficiency (94%), low cost, Asynchronous boost design for automotive LED applications

TI TechNotes

Browse current and power measurement use cases. Each TI TechNote includes problem analysis, implementation options and related products.

TI TechNotes Download TechNotes Devices

Current Sensing in an H-Bridge

An overview of benefits for the most common locations current sensing is measured in an H-Bridge

PDF INA240

Switching Power Supply Current Measurements

A review of the tradeoffs and benefits for the multiple locations current can be measured in a switching power supply

PDF INA240

Integrated, Current Sensing Analog-to-Digital Converter

Current and power monitoring using an improved, integrated current sensing specific analog-to-digital converter

PDF INA226

High-Side Drive, High-Side Solenoid Monitor With PWM Rejections

A functional use case highlighting the improvements measuring current offers in solenoid control

PDF

LMP8278Q-Q1

INA240

Monitoring Current for Multiple Out-of-Range Conditions

A functional use case outlining solutions to identify and handle multiple failure conditions in a system

PDF

INA302

INA303

Precision, Low-Side Current Measurement

A review of the tradeoffs and advantages of current sense amplifiers in a low-side current measurements

PDF

INA199

INA210

Integrating the Current Sensing Resistor

An overview on layout, accuracy and stability improvements when integrating the current sense resistor

PDF INA250

Bi-Directional, Low-Side Phase Current Sensing with Integrated Over-Current Detection

A functional use case illustrating configurations for motor protection using low-side current sensing

PDF INA303

Low-Drift, Precision, In-Line Motor Current Measurements With Enhanced PWM Rejection

A functional use case, targeted at motor applications, that outlines a range of solutions for measuring in-line phase current

PDF

LMP8601

INA240

Low-Drift, Low-Side Current Measurements for Three Phase Systems

A functional use case outlining possible configurations for measuring a motor's phase current, with a focus on low-side implementations

PDF INA301

Measuring Current To Detect Out-of-Range Conditions

An overview of the reasons and benefits of having overcurrent protection as part of any system

PDF

INA300

INA301

Precision Current Measurements on High Voltage Power Supply Rails

A review of the benefits of using a current sensing amplifier to measure on the high-side of the shunt resistor

PDF INA210

High-Side Motor Current Monitoring for Over-Current Protection

Current monitoring of the DC-Link supply rail for lower complexity motor design

PDF INA240

Integrating the Current Sensing Signal Path

Understanding the benefits and trade-offs for the different types of current measurement approaches

PDF

INA210

INA226