Capacitive touch controllers replace mechanical buttons

To achieve high reliability and more sensitive touch performance, including operation through a glove, the MTCH102-5-8 capacitive touch controllers come with advanced multi-stage noise filtering algorithms. The MTCH102-5-8 controllers support a wide range of touch-sensor shapes and sizes, feature automatic compensation for environmental conditions, and provide reliable operation in the presence of water. Moreover, active guarding increases proximity-sensing sensitivity and makes the electronic design robust, even with long board traces to the touch sensors.

The MTCH102-5-8 low power touch controllers create robust, ready-to-go touch solutions to serve the rapid growth of capacitive human interfaces for industrial applications such as light switches; home-automation products including security control panels, thermostats and lighting controls; office equipment such as printers, copiers and fax machines; and consumer products including toys, white goods and appliances; in addition to applications in other markets.

To enable the easy evaluation and configuration of capacitive-touch interfaces, the MTCH102-5-8 is supported by Microchip’s compact DM160229 demonstration board, priced at $29.95, which will be available in November.

The MTCH102 mTouch sensing, low-power, two-channel capacitive touch controller is available in a MSOP or uDFN package, for sampling and volume production. The MTCH105 low-power, five-channel capacitive touch controller is available today in a QFN or TSSOP package, for sampling and volume production. The MTCH108 low-power, eight-channel capacitive touch controller is available in a μQFN or SSOP package, for sampling and volume production.