Broadcom ACHS-719x Current Sensor ICs

Broadcom ACHS-719x Current Sensor ICs belong to the fully integrated Hall-Effect based isolated linear current sensor device family. These devices are designed for AC or DC current sensing in industrial, commercial, and communications systems. The ACHS-719x Current Sensor ICs consist of a precise and low-offset, linear Hall circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field that the differential Hall sensors convert into a proportional voltage. The Current Sensor ICs accuracy is optimized across the operating ambient temperature through the close proximity of the magnetic signal to the Hall sensors.

The ACHS-719x Current Sensor ICs feature 0.7mΩ (typical) internal conductor resistance, low-noise analog signal path, and extremely stable output offset voltage. These current sensor ICs operate at -40ºC to 110ºC temperature range and 5V single supply voltage. The ACHS-719x ICs performance is delivered in a compact and surface-mountable SO-8 package that meets worldwide regulatory safety standards. Typical applications include eBikes, motor phase and rail current sensing, solar inverters, chargers and converters, and switching power supplies.


  • Output voltage proportional to AC or DC currents
  • Ratiometric output from the supply voltage
  • 5V single-supply operation
  • 0.7mΩ typical internal conductor resistance
  • ±10A to ±50A sensing current range
  • 40mV/A to 185mV/A output sensitivity range
  • Low-noise analog signal path
  • Extremely stable output offset voltage
  • Device bandwidth is set via the new FILTER pin:
    • 80kHz typical bandwidth with 1nF filter capacitor
  • Factory-trimmed for accuracy
  • Near-zero magnetic hysteresis
  • Maximum output error of ±6.0% across operating TA
  • Greater than 25kV/µs common-mode transient immunity
  • -40ºC to 110ºC wide operating temperature range
  • Small footprint and low-profile SO-8 package
  • Worldwide safety approval:
    • UL/cUL and IEC/EN 62368-1 (Viorm = 567 Vpeak)
  • 3kVrms, 1-minute isolation voltage


  • Low-power inverter current sensing
  • eBikes
  • Motor phase and rail current sensing
  • Solar inverters
  • Chargers and converters
  • Switching power supplies

Application Circuit

Application Circuit Diagram - Broadcom ACHS-719x Current Sensor ICs

Mechanical Drawing

Mechanical Drawing - Broadcom ACHS-719x Current Sensor ICs
Published: 2020-10-27 | Updated: 2022-03-11