The integrated circuit PCF8883 is a capacitive touch and proximity switch that uses a patented (EDISEN) digital method to detect a change in capacitance on a remote sensing plate. Changes in the static capacitance (as opposed to dynamic capacitance changes) are automatically compensated using continuous auto-calibration. Remote sensing plates (e.g. conductive foil) can be connected directly to the IC1 or remotely using a coaxial cable.
The NXP PCF8883 is an integrated circuit designed as a capacitive touch and proximity switch. It utilizes a patented digital method to detect changes in capacitance on remote sensing plates, such as conductive foil or glass. The device features continuous auto-calibration to compensate for static capacitance changes, allowing it to operate effectively over large distances between the IC and the sensing plate.
| Input capacitance range | 10 pF to 60 pF |
|---|---|
| Operating voltage | 3 V to 9 V |
| Operating temperature | -40 °C to +85 °C |
| Typical supply current | 3 µA |
The device operates with a supply voltage between 3 V and 9 V.
The chip draws 3 mA when powered by a battery.