CN / EN
GH6211
GH6211 Block Diagram
GH6211 Application Diagram 1
GH6211 Application Diagram 2

GH6211 is a 5-channel high-precision all-in-one interactive sensor capable of hybrid self / mutual capacitance measurement and force sensing. As an easy-to-develop, low-power sensor, it can be applied extensively to scenarios like proximity sensing, touch control, IED, and force sensing.

The sensor boasts high-sensitivity capacitive sensing in aF-level capacitance measurement resolution, and offers a wide input range and excellent anti-interference performance. Integrated with a 24-bit high-precision ADC for voltage detection and a low-power MCU, it can effortlessly satisfy differentiated high-precision data processing requirements.

GH6211 Block Diagram
GH6211 Application Diagram 1
GH6211 Application Diagram 2

Key Features

  • Up to 5 channels for self/mutual-capacitive sensing

    • Premium capacitance resolution at aF-level

    • Self-capacitance input range: up to ±30 pF

    • Capacitance offset compensation for self-capacitive sensing (Coffset): up to 300 pF

    • Independent channel configuration

    • Automatic temperature calibration

  • One high-precision fully-differential 24-bit ADC channel

    • One independent Wheatstone Bridge

    • Built-in 1.8 V power supply to drive the bridge

  • 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

  • Package: DFN (10-pin, 2.1 mm * 1.8 mm * 0.55 mm)

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Product Details

Product

GH6211

Channels

5

Self-Cap

Mutual-Cap

Capacitance resolution

aF-level

Self-capacitance input range

Up to ±30 pF

Capacitance offset compensation

Up to 300 pF

Resistive based force

1 Wheatstone Bridge

Communication interface

I2C

ADC

24 bit

MCU

16 bit-low-power MCU

VDD(V)

1.7 ~ 3.6

V_I2C(V)

1.1 ~ 3.6

Package

DFN-10, 2.1 * 1.8 mm

Applications

1) ≤5-ch Proximity, Touch key, Slider;
2) Wear detection + Force;

Hardware

GH621x-EVK

Used for hardware evaluation and performance testing of GH6210, GH6211, and GH6212 chips

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Software & Tools

GH621x SDK

GH621x Software Development Kit (SDK) provides extensive software development support to GH621x series chips with easy-to-use API, driver programs, example codes, application patches, and relevant user documents.
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GH621x-GTModuleTest

Provides module test and complete product test solutions for GH6210/GH6211/GH6212, which support hardware function tests, capacitive sensor calibration & tests, and force calibration tests.
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