Allegro MicroSystems Launches Industry's Most Accurate Magnetic Current Sensor

The new ACS37017 sensor delivers 0.55% typical sensitivity error, setting a new benchmark for precision in power electronics applications.

Published on Feb. 12, 2026

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Allegro MicroSystems, a leader in power and sensing solutions, has introduced the ACS37017, a new Hall-effect current sensor that the company says sets the industry benchmark for accuracy. The factory-calibrated ACS37017 integrates high-voltage isolation with an advanced sensing architecture to achieve an industry-leading 0.55% typical sensitivity error over lifetime and temperature, providing the high-fidelity feedback required to stabilize high-voltage power conversion systems.

Why it matters

As power converters in AI data centers, electric vehicles, and clean energy systems push for higher efficiency, designers are seeking specialized solutions tailored to their specific performance objectives. The ACS37017 answers the call for accuracy, which is critical for stabilizing high-voltage power conversion systems and ensuring long-term reliability.

The details

The ACS37017 joins two other recently launched market-leading current sensors from Allegro that offer solutions for key design priorities: the speed-focused ACS37100 and the high-density ACS37200. Together, the three sensors form a comprehensive portfolio that gives engineers the 'right tool for the job' across a range of power electronics applications.

  • The ACS37017 was introduced on February 12, 2026.

The players

Allegro MicroSystems

A global leader in power and sensing solutions for motion control and energy-efficient systems.

Matt Hein

Business line director of Current Sensors at Allegro MicroSystems.

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What they’re saying

“Our philosophy is simple: we want to give engineers the right tool for the job. We don't force a compromise.”

— Matt Hein, Business line director of Current Sensors (Signal Integrity Journal)

What’s next

Designers can request the preliminary datasheet and engineering samples for the ACS37017 now.

The takeaway

Allegro's expanded portfolio of high-performance current sensors, including the industry-leading ACS37017, provides specialized solutions to meet the evolving needs of power electronics designers in areas like efficiency, density, and accuracy.