The IQS550-A000 is a projected capacitive touch and proximity trackpad/touchscreen controller implementation on the IQS550 platform. The IQS550 features best in class sensitivity, signal-to-noise ratio and automatic tuning of electrodes. Low power proximity detection allows extreme low power operation.

The IQS550-B000 is recommended for new designs but the IQS550-A000 is still available to order.

Datasheet: Download

Firmware: Download

PC Software: Download

Status:   Production


  • Proximity, touch and snap on each channel
  • Multi-touch and multi-hover support
  • 3584 x 2304 resolution  
  • I2C communications interface
  • ATI: automatic tuning for optimum sensitivity
  • Supply Voltage 1.65V to 3.6V
  • Proximity low power operation (<10uA)
  • Event mode and streaming modes
  • Dedicated proximity channel for long range proximity sensing
  • Internal voltage regulator and reference capacitor
  • On-chip noise detection and suppression


  • Compact Capacitive Keyboards
  • Remote Control Trackpads
  • Appliances
  • Navigation devices
  • Kiosks and POS terminals
  • E-readers
  • Consumer electronics

Application Notes:

AZD068 - Trackpad design guide

AZD076 - Non uniform and curved surfaces

AZD074 - Design an educational touch toy

AZD070 - Programming and data streaming guide

AZD067 - Trackpad communication interface