The IQS7211E ProxFusion® IC is a capacitive touch and proximity trackpad/touchscreen controller implementation. The IQS7211E features best in class sensitivity, signal-to-noise ratio and automatic tuning of electrodes. Low power proximity detection allows extreme low power operation.

Main Features

  • Highly flexible ProxFusion® device
  • 13 (QFN20) / 11 (WLCSP18) external sensor pad connections
  • Self-/Mutual-capacitive sensors configuration for display wake-up
  • ULP wake-up on touch
    • Dedicated Ultra Low Power wake-up touch sensor or
    • Wake-up on screen/trackpad
  • Sensor flexibility
    • Automatic sensor tuning for optimum sensitivity
    • Internal voltage regulator
    • Reference capacitor
    • On-chip noise filtering
    • Detection debounce and hysteresis
    • Wide range of capacitance detection
  • Trackpad/Touchscreen
    • Up to 2 fingers tracking
    • High resolution coordinate outputs
    • Fast response: Coordinate report rate up to 100Hz
    • Individual sensor touch
    • Integrated touch size output (area and strength) for touch integrity
    • Single finger gesture recognition engine
    • Electrode mapping for optimal PCB layout\
    • Configurable coordinate resolution and orientation
    • Compatible with wide range of overlay materials and thicknesses
    • Compatible with multiple 1-and 2-layer sensor patterns
    • Adjustable sensing frequency offset for limiting potential display interference
    • No calibration required - systems automatically compensated for mechanical & temperature changes
    • Water immunity features
  • Design and manufacturing support
    • Touch pattern layout drawing
    • Full FPC layout package (example & customised)
    • Test guide for touch pattern
    • RFI immunity design support
  • Design simplicity
    • PC Software for debugging and obtaining optimal performance
    • One-time settings programming (during MP) or pre-programmed devices
    • Auto-run from programmed settings for simplified integration
    • No production line calibration required
  • Display cover lens thickness
    • Minimum thickness: 0.5mm
    • Maximum thickness: 2-4mm depending on design parameters
  • Minimize display noise
    • Advanced DSP for touch performance
    • Display and charger interference avoidance
    • Auto adjusting digital filters
  • Supports different display touch panel types
    • On-cell
    • Add-on touch panel
  • Supporting up to 2.5" panels
  • Screen resolution
    • 256 per channel
    • Example: 2048x768 (9x4 channels), 1536x1280 (7x6 channels)
  • Automated system power modes for optimal response vs consumption
  • I2C communication interface with IRQ/RDY(up to fast plus -1MHz)
  • Event and streaming modes
  • Customisable user interface due to programmable memory
  • Supply voltage
    • 1.8V(-5%) to 3.5V @ 14MHz
    • Minimum 2.2V @ 18MHz
  • Small packages
    • WLCSP18 (1.62x 1.62x0.5 mm) - interleaved 0.4mm x 0.6mm ball pitch
    • QFN20 (3 x 3 x 0.5 mm) - 0.4mm pitch


  • Single tap
  • Double tap
  • Triple tap
  • Press-and-hold
  • Swipe X+ (with continuous swipe configurable)
  • Swipe X- (with continuous swipe configurable)
  • Swipe Y+ (with continuous swipe configurable)
  • Swipe Y- (with continuous swipe configurable)
  • Swipe and hold X+
  • Swipe and hold X-
  • Swipe and hold Y+
  • Swipe and hold Y-
  • Palm (Flat hand)


  • Fitness bands
  • True Wireless Stereo (TWS) earbuds
  • Game controller touch pads
  • Headphones
We’ve done it before.
If you don’t believe us test it yourself.


  • 1 x Headphone Trackpad module
  • 1 x Flower Trackpad module
  • 2 x IQS7211E Stamps
  • 1 x CT210A debug and display tool

Connect the plugins to your computer via CT210/A to evaluate capacitive functions with our GUI software.


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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