Azoteq IQS7211A Capacitive Touch & Proximity Controller

Azoteq IQS7211A is a capacitive touch and proximity trackpad / touchscreen controller with automatic tuning for touch devices. The controller features ultra-low power (ULP) wake-up on touch and an internal voltage regulator. Azoteq IQS7211A controllers offer responses up to 100Hz, and come in both QFN and BGA packages. The devices include 12 (QFN) / 10 (WLCSP) external sensor pad connections. The IQS7211A series is suitable for capacitive and touch devices such as wireless earbuds, fitness bands, and game controllers.


  • ULP wake-up on touch
  • Automatic sensor tuning
  • Internal voltage regulator
  • High resolution coordinate outputs
  • Fast response, up to 100Hz
  • Gesture recognition engine


  • Fitness bands
  • True wireless stereo (TWS) earbuds
  • Game controller touch pads
  • Headphones


  • 12 (QFN) / 10 (WLCSP) external sensor pad connections
  • Up to 200mm2 board to touch panel interface capability
  • QFN20 and WLCSP18 packages
  • 10 to 12 eternal sensor pad connections
  • 0.5mm to 5mm display cover thickness, depending on design parameters
  • 1.71VDC to 3.5VDC operating voltage
  • -40°C to +85°C operating temperature range

Block Diagram

Block Diagram - Azoteq IQS7211A Capacitive Touch & Proximity Controller
Published: 2021-06-22 | Updated: 2022-05-19