The IQS7320A ProxFusion® IC is a multi-channel inductive sensing device that is mainly aimed at applications that require multi-level trigger points and fast report rates. The trigger-level UI allows for adjustable trigger point sensitivity resulting in a better user experience with best-in-class sensitivity and power consumption. Other features include automatic tuning and long-term environmental tracking.

Main Features

  • Highly flexible ProxFusion® device
  • Up to 4 inductive sensors
  • Adjustable trigger point detection for each sensor
  • Greater than 1kHz report rate
  • Synchronous matrix column key scanning
  • RF Immunity
  • Sensor flexibility
    • Automatic sensor tuning for optimum sensitivity
    • Internal voltage regulator
    • On-chip noise filtering
    • Trigger point detection hysteresis
  • Configurable power modes for optimal response rate vs power consumption
  • I2C communication interface with IRQ/RDY (up to fast plus - 1MHz)
  • QFN20 (3 x 3 x 0.5 mm) – 0.4mm pitch
  • Wide input voltage supply range: 2.2V to 3.5V
  • Wide operating temperature range: -40°C to +85°C


  • Mechanical Keyboards
  • Waterproof Buttons (Inductive)
  • Trackpad Force Touch
  • Remote Controls
  • Gaming Controllers
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