The circuit decodes a single switch, but you could use the approach for multiple switches, and it has programmable sensing thresholds that allow for different PCB layouts and dielectrics. Figure 1 ...

2. The pushbutton design starts with the understanding of the electric field formed as a capacitor between a sensing pad and a nearby ground. In capacitive touch sensing, that capacitor is part of ...

For example, a capacitive-touch design requires more attention to detail from the PCB layout team than does a mechanical switch. It also requires more firmware to determine the state of the user ...

Littelfuse, Inc. announced the relaunch of its PTS647 Series Surface-Mounted Tactile Switch featuring significant design ...