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GH6212 – High-Precision All-in-One Interactive Sensor

Overview

GH6212 is a 9-channel high-precision all-in-one interactive sensor that is capable of sensing capacitance, force, and temperature. It can be applied extensively in proximity sensing, touch control, IED, force, temperature sensing, and more — featuring development flexibility and low power consumption.

The sensor stands out in aF-level capacitance resolution (for high-sensitivity capacitive sensing), wide capacitance input range, and offers excellent noise immunity. It incorporates a 24-bit high-precision ADC for voltage detection and low-power MCU, effortlessly facilitating high-precision differentiated data processing requirements.

Features

  • All-in-one sensing chip for capacitance, force, and temperature sensing

    1. Up to 9 channels for self/mutual-capacitance sensing

      1. Premium capacitance resolution at 1.5 aF
      2. Self-capacitance input range: ±10 pF (typical)
      3. Capacitance offset compensation for self-capacitance sensing (Coffset): up to 300 pF
      4. Independent channel configuration
      5. Automatic temperature calibration
    2. Two high-precision fully-differential 24-bit ADC channels

      1. Two independent Wheatstone Bridges
      2. Built-in 1.8 V power supply to drive the bridges
    3. Two NTC resistance sensing channels
  • VCC power supply voltage: 1.7 V ~ 3.6 V

  • IIC communication level: 1.1 V ~ 3.6 V

  • Built-in 16-bit low-power MCU

  • Standard IIC communication interface; serving as slave device

  • Sensing channels multiplexed as GPIOs

  • Fast slide gesture recognition and customized gesture directions

  • Memory: 16 KB PRAM; 1 KB DRAM

  • Package: WLCSP 16-Pin 2.212 mm x 1.8 mm x 0.513 mm

System Block Diagram

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