Integrated Current Sensors from LEM

Smarter sensing starts here!

LEM is redefining current sensing with ultra-compact, high-precision Integrated Current Sensors, engineered for seamless integration into automotive, industrial, and residential applications.

Current sensors have to be smaller, smarter, cheaper. LEM’s R&D is actively developing a range of Current Sensor IC to reduce the footprint of the current sensing function and simplify the integration of current measurement in a wide range of applications.

At low currents, shunts remain a viable solution, but they have isolation challenges and cannot provide the current sensing function alone. They require amplifiers and/or analogue-digital conversion (ADC) for signal treatment of the measured voltage drop.

Thanks to technical progress in semiconductor manufacturing and packaging, it is now possible to integrate all the stages of a current sensor in 1 single package. Current flows through the device, the induced magnetic field is sensed by two Hall-effect plates, the operation is contactless and provides inherent galvanic isolation, the voltage signal is treated inside an application-specific integrated circuit (ASIC) and this very ASIC also allows to add other ad hoc features.

As a leader in electrical measurement for 50 years, LEM is constantly developing new technologies to fit customers evolving needs. The company is now building a complete Current Sensor ICs range to serve evolving needs as well as new applications.