Design Idea for a touch-sensor circuit that requires only 2 controller pins for a touch-pad with 12 sense locations. In an application using a pin-limited microcontroller (MCU), I needed to scan an ...

A dc-blocking capacitor, which youcommonly apply in series with each data wire in a differential link, can servemany purposes. It can, for example, shift the average dc-bias level of thesignal to ...

Many people mistake the growth in capacitive touch sensors as the adoption of new technology. But the fact is advances in mixed-signal programmable devices, those that combine analog and digital into ...