The IQS624 ProxFusion® IC is a multifunctional capacitance, inductance and Hall-effect sensor designed for applications where any or all of the technologies may be required. The two 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 of the magnet without extra calculations. The inductive sensing is suitable for the detection of metallic objects while capacitive sensing provides human touch and proximity detection.

Iqs624 Page


  • Hall Effect Sensor:
    • On-chip Hall plates
      • 360° Output
      • 1° Resolution, calculated on chip
      • Detect movement and the direction of movement
      • Relative rotation angle
      • Raw data: can be used to calculate degrees on 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 (10bit)
  • Capacitive sensing:
    • Full auto-tuning with adjustable sensitivity
    • 2pF to 200pF external capacitive load capability
    • Proximity / Touch
    • Proximity wake-up
    • Event mode
    • Wake Hall sensing on proximity
  • Inductive sensing
    • DK Electronics
    • Only external sense coil required (PCB trace)
  • Low power consumption:
    • 240uA (100Hz response, Hall)
    • 55uA (100Hz response, capacitive)
    • 65uA (20Hz response, Hall)
    • 15uA (20Hz response, capacitive)
    • 5uA (5Hz response, capacitive)
  • Minimal external components
  • Standard I2C interface
  • Optional RDY indication for event mode operation
  • Supply voltage: 2V to 3.6V1


  • Anemometer
  • Dial or Selector knob
  • Mouse wheel
  • Measuring wheel
  • Digital angle gauge
  • Speedometer for bicycle

Product Selection Guide:

Options IQS624-30x-DNR2 IQS624-320x-DNR IQS624-50x-DNR1
Voltage 2V - 3.6V 2V - 3.6V 2.4V - 5.5V
Software version 1 2 1
Interval UI No Yes No
Advanced Degree Filtering No Yes No
Advanced Wheel Wake-up No Yes No
Hall Plate Calibration No Yes No
I2C Configuration No Yes No
Startup ATI Bug Fix No Yes No
Extra Event Options No Yes No
1 5V Built on special request 2 Not recommended for new designs
We’ve done it before.
If you don’t believe us test it yourself.

Includes 3x IQS624 Stamp modules.
Embed into custom design and interface to host MCU to evaluate capacitive and hall-effect functions.

NOTE: Arduino Uno/ST Nucleo not included. CT210/A and IQS624 Shield board sold separately.

Iqs624 Ev01 Azoteq Product Evaluation Kits

Includes 1x IQS62x Shield board and 1x IQS624 Stamp module.
Plug Shield board and Stamp module into Arduino Uno/ST Nucleo to evaluate capacitive, inductive and hall-effects functions. Alternatively, connect with CT210/A directly to PC GUI.

NOTE: Arduino Uno/ST Nucleo not included. CT210/A sold separately.

Iqs624 Ev02 Azoteq Product Evaluation Kits

Includes 1x IQS624 Shield board and 1x CT210/A.
Plug Shield board and Stamp module into Arduino Uno/ST Nucleo and/or into PC via CT210/A to evaluate capacitive and hall-effect functions with GUI software. 

NOTE: Arduino Uno/ST Nucleo not included.

Iqs624 Ev04 Azoteq Product Evaluation Kits

Azoteq provides software used for the serial streaming of data to a computer utilising the Azoteq USB-dongles. Each IC has its own dedicated software and is intended for prototyping purposes and can be found on the Azoteq website under Software and Tools.

Feel free to order us around.
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