Description

The MTCH2120 Capacitive Touch Controller with I²C (Inter-Integrated Circuit) interface enables the application to use water-tolerant touch buttons or proximity sensing. The device features 12 capacitive touch sensors with configurable Driven Shield capability. Touch performance parameters can be adjusted via the I²C interface, enabling the configuration of the MTCH2120 operation to suit the intended use case. Additionally, the device includes Easy Tune enabled out-of-the-box usage even under changing noise conditions without the need for tuning - your fastest way to a touch button interface. To ensure reliable touch detection even in challenging noise environments, the MTCH2120 incorporates advanced algorithms that actively filter out noise from the signal.

The MTCH2120 provides touch/proximity detection sensors that can work through plastic, wood, or metal front panels with Microchip’s proprietary Metal over Capacitive (MoC) technology. It supports a variety of conductive materials as sensors, such as copper pads on PCB, silver ink, PEDOT carbon printing on plastic film, and Indium Tin Oxide (ITO) pads.