Azoteq IQS625 ProxFusion IC

Azoteq IQS625 ProxFusion IC is a multifunctional capacitance and Hall-effect sensor designed for applications where any or all of the technologies may be required. The Hall-effect sensors calculate the angle of a magnet rotating parallel with the sensor. The sensor is fully I2C compatible, and on-chip calculations enable the IC to stream the current angle/interval of the magnet without extra calculations. Applications include anemometer, thermostat, dial/selector knob, mouse wheel, measuring wheel, digital angle gauge, and speedometer for a bicycle.


  • Hall effect angle sensor
    • On-chip Hall plates
    • Absolute Wheel Interval Output
    • Raw data can be used to calculate degrees on an external processor.
    • Wide operational range
    • No external components required
  • Partial auto calibration
    • Continuous auto-calibration, compensation for wear or small displacements of the sensor or magnet.
    • Flexible gain control
    • Automatic tuning implementation (ATI) – Performance enhancement (10 bit).
  • Capacitive sensing
    • Full auto-tuning with adjustable sensitivity
    • 2pF to 200pF external capacitive load capability
  • Multiple integrated UI
    • Proximity / Touch
    • Proximity wake-up
    • Event mode
    • Wake Hall sensing on proximity
    • Interval wake-up
  • Minimal external components
  • Standard I2C interface
  • Optional RDY indication for event mode operation
  • Low power consumption
    • 240uA (100Hz response, Hall),
    • 55uA (100Hz response, capacitive),
    • 65uA (20Hz response, Hall)
    • 15uA (20Hz response, capacitive)
    • 5uA (5Hz response, capacitive)
  • 2.0V to 3.6V supply voltage 


  • Anemometer
  • Dial or selector knob
  • Mouse wheel
  • Measuring wheel
  • Digital angle gauge
  • Speedometer for bicycle
Publicado: 2018-12-14 | Actualizado: 2023-01-20