LEM GXS Integrated Current Sensors

LEM GXS Integrated Current Sensors are an integrated current transducer solution designed to measure AC and DC current in industrial applications. The sensor can reject external fields from a noisy environment. Innovative isolation technology and signal conditioning design can meet high isolation levels while sensing the current flowing through the primary conductor. The primary conductor (pins 1 and 4) has a very low electrical resistance of 1.2mΩ (typ.), enabling excellent performance with low power losses. The LEM GXS Integrated Current Sensors can measure currents from 5A to 60A over a wide temperature range. The galvanic isolation between the primary and secondary eliminates the need for additional insulation, reducing the system's footprint and cost.

Features

  • 5A to 60A open-loop multi-range current sensor
  • Low electrical resistance of 1.2mΩ
  • 3.3V or 5V supply voltage
  • Ratiometric output and fixed output
  • High bandwidth of 400kHz
  • 1.5µs response time
  • Galvanic separation between primary and secondary with 4mm of dCI and 4mm of dCp
  • 3000Vrms withstand isolation voltage (VISO)
  • 600Vdc/424Vrms working voltage for basic isolation
  • Common-mode transient immunity (CMTI) of greater than 100V/ns
  • Comparative tracking index (CTI) of greater than 600V/ns
  • -40°C to 125°C working temperature
  • UL62368/EN62368 safety certification
  • SOIC-8 package
  • RoHS compliant
  • 6kV maximum surge isolation withstands voltage (VIOSM)

Applications

  • Photovoltaic system
  • Servo and drive
  • Automation
  • Industrial power supply
  • Motor control
  • DC-DC
  • OBC/DC-DC/PTC heater
  • Charging pile
  • Power distribution

Block Diagram

Block Diagram - LEM GXS Integrated Current Sensors
Published: 2026-02-11 | Updated: 2026-02-11