PCF8883
description
The integrated circuit PCF8883 is a capacitive 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 pensated using continuous auto-calibration. Remote sensing plates (e.g. conductive foil) can be connected directly to the IC1 or remotely using a coaxial cable.
2. Features
I I I I I I I I I I I I I I Dynamic proximity switch Digital processing method Adjustable sensitivity, can be made very high Adjustable response time Wide input capacitance range (10 p F to 60 p F) Automatic calibration A large distance (several meters) between the sensing plate and the IC is possible Open-drain output (P-type MOSFET, external load between pin and ground) Designed for battery powered applications (IDD = 3 µA, typical) Output configurable as push-button, toggle, or pulse Wide voltage operating range (VDD = 3 V to 9 V) Large...
