Current Sensors

We’ve been driving innovation in the current sensor industry since 2002, with a history of first-to-market products that give our customers a competitive edge. Our advanced ICs help you achieve higher efficiency and power density in your designs. Our fully integrated solutions make design-in easy.

We're leading the market in main traction motor and auxiliary inverters for electric vehicles, and OEMs trust us for applications like DC-to-DC converters and on-board chargers.

We also shine at high voltage with industry-leading isolation ratings of up to 1100 Vrms—ideal for residential and industrial solar inverter applications.

Features and Innovations

DC Working Voltage

Our packages have the highest working voltages in SOIC-16 footprint

Overcurrent Detection

Our current sensors include fast overcurrent detection in addition to a precision analog output.

High Speed sensors replace bulky current transformers

High speed integrated sensors are the smart alternative to bulky current transformers (CTs).

Current Sensors Innovations

Browse by category

0-50A current sensor

0 to 50 A Integrated Current Sensor ICs

Our family of fully integrated, high isolation current sensor solutions provides accurate measurement with very low resistance—all without the need for external isolation components.

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0-400A

0 to 400 A Integrated Current Sensor ICs

Our fully-integrated, high current sensor IC packages provide high accuracy and reliability. Our automotive-grade devices that can take the heat and deliver highly accurate open-loop current sensing in the harshest applications environments.

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Core-based-Field-Sensors

Field Sensors 0 to >1000 A Sensor ICs

Customer-programmable for both offset and sensitivity, these Hall linear ICs are packaged in a 1 mm thick KT package SIP that is often used in applications with a ferromagnetic core and are designed to sense currents above 1500 A.

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Featured Products

Allegro's MA-LA-MC Packages

ACS37002

400 kHz, High Accuracy Current Sensor with Pin-Selectable Gains

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Allegro-16-Pin-SOICW-MA-Package

ACS37800

Programmable AC and DC Power Monitoring IC

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8-Pin-TSSOP-LU-Package

ACS37612

Standalone Coreless Differential Current Sensor IC

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ACS72981 Product Image

ACS72981

High-Precision Linear Hall-Effect-Based Current Sensor IC With 200 μΩ Current Conductor

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Design Resources