The IQS228 is a single channel capacitive sensor device for applications that require both proximity and touch detection.


  • Automatic Antenna Tuning Implementation (ATI)
  • IQS228B supply voltage: 1.8V - 3.6V
  • IQS228D supply voltage: 2.4V - 5.5V
  • Minimal external components
  • Data streaming option
  • Advanced on-chip digital signal processing
  • Low Power Modes
  • Time-out for stuck key
  • Output mode (Direct / Latch / Toggle)
  • Separate Proximity and Touch sensitivity
  • TSOT23-6 / DFN-6 / WLCSP-8 package options
  • Touch: 6mm plastic, 10mm glass


  • LCD, Plasma & LED TVs
    • Proximity enabled backlighting
  • Mobile Phones
    • GUI trigger on Proximity detected
    • On ear activation
  • Wake up from standby detection / touch keys
  • LED flashlights or headlamps
  • White goods and appliances
  • Office equipment, toys
  • Hermitically sealed Human Interface Devices
  • Replacement for electro-mechanical switches
  • Find-In-The-Dark (FITD) applications
  • Automotive:
    • Door pocket lighting, electric window control
We’ve done it before.
If you don’t believe us test it yourself.

Includes 2x IQS227B Stamp modules and 2x IQS228B Stamp modules.
Embed into custom design and interface to host MCU to evaluate capacitive, inductive and hall-effect functions.

NOTE: CT210/A and IQS227B/228B Shield board sold separately.

NOTE: IQS227/8DEV01 – Contact Azoteq

Iqs227 Ev01 Azoteq Product Evaluation Kits

Includes 1x IQS227B/228B Shield board, 3x IQS227B Stamp modules, 3x IQS228B Stamp modules, 3x IQS227B IC’s and 3x IQS228B IC’s.
Connect Shield board and Stamp module to PC via CT210/A to evaluate proximity and touch functions with GUI.

 NOTE: CT210/A sold separately.

Iqs227 Ev02 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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