The IQS128 ProxSense® IC is a fully integrated capacitive sensor with Dynamic Calibration technology to compensate for sensor drift.


  • DYCAL Intelligent Hysteresis
  • Automatic Tuning Implementation (ATI)
  • Internal Capacitor Implementation (ICI)
  • Supply voltage: 2.95V to 5.5V
  • Minimal external components
  • Data streaming option
  • Advanced on-chip digital signal processing
  • Ultra Low Power (15uA)
  • Time-out for stuck key
  • Proximity and Touch Button sensitivity
  • 6 pin TSOT23-6
  • Touch: 6mm plastic, 10mm glass
  • Proximity: 15cm


  • SAR (p-sensor) sensor for tablets, laptops and mobile phones
  • LCD, Plasma & LED TVs
    • Proximity enabled back lighting
  • Mobile Phones on-ear detection
  • Wake up from standby detection / touch keys
  • White goods and appliances
  • Office equipment, toys
  • Hermetically sealed human interface devices
  • Replacement for electro-mechanical switches
  • Find-In-The-Dark (FITD) applications
Let us help you implement your IQS128.
We’ve done it before.
If you don’t believe us test it yourself.

Includes 3x IQS128 Stamp modules.
Embed into custom design and interface to host MCU to evaluate user proximity and touch functions.

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User Guide
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