iqs620 desc

The IQS620(A) ProxFusion® IC is a multifunctional capacitance, Hall-effect & inductance sensor designed for applications where any or all of the technologies may be required. The  IQS620(A) is an ultra-low power solution designed for short or long term activations through any of the sensing channels. The IQS620(A) is fully I2C compatible and can be configured to output main trigger events on GPIOs.

Datasheet: View

Overview: View

PC Software IQS620: Download

PC Software IQS620A:  Download

Demo Software: Download

Video: Coming Soon...

Status: Production



  • Unique combination of sensing technologies:
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    • Capacitive sensing
    • Hall-effect sensing
    • Inductive sensing


  • Capacitive sensing:
    • Full auto-tuning with adjustable sensitivity
    • 2pF to 200pF external capacitive load capability


  • Hall-effect sensing:
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    • On-chip Hall-effect measurement plates
    • Dual direction Hall switch sensor UI
    • 2 level detection (widely variable)
    • Detection range 10mT – 200mT


  • Inductive sensing:
    • 2 level detection and hysteresis for inductive sensing
    • Only external sense coil required (PCB trace)


  • Low power consumption:
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    • 90uA (100Hz response, 3ch capacitive)
    • 32uA (20Hz response, 3ch capacitive)
    • 2.5uA (4Hz response, 1ch cap. wake-up)


  • Multiple integrated UI options based on
    years of experience in sensing on fixed and
    mobile platforms:
    • Proximity wake-up/Touch
    • SAR


  • Automatic Tuning Implementation (ATI) – performance enhancement (10bit)
  • Minimal external components
  • Standard I2C interface (polling with sub 1ms clock stretching)
  • Optional RDY indication for event mode operation
  • Supply voltage:
    • IQS620: 2.0V to 3.3V
    • IQS620A: 1.8V to 3.3V
  • Low profile DFN(3x3) - 10 pin package


  • Mobile electronics (phones/tablets)
  • SAR safety requirements for laptops, tablets and phones
  • Wearable devices
  • White goods and appliances
  • Human Interface Devices
  • Proximity activated backlighting
  • Applications with long-term activation
  • Aftermarket automotive1

Application Notes:

Coming Soon...

1 The parts are not automotive qualified.