Capacitive Switch - MS8883A

Product Specification

1.General Description：

    The integrated circuit MS8883A is a capacitive 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 remotely to the IC using coaxial cable.

2.Applications：

? Hermetically sealed keys on a keyboard

? Switch for medical applications

? Switch for use in explosive environments

? Vandal proof switches

? Automotive: Switches in or under upholstery, leather, handles, mats and glass

? Portable entertainment units

? Buildings: Switch in or under carpets, glass or tiles

? Sanitary applications: Use of standard metal sanitary parts (e.g. tap) as switch

3.Typical application：

4.Features：

? Dynamic proximity switch

? Digital processing method

? Automatic calibration

? Sensing plates can be connected remotely

? Open-drain output (P-type MOSFET, external load between pin and ground)

? Designed for battery powered applications (IHI typ. 3μA)

? Adjustable response time

? Adjustable sensitivity

? Output configurable as push-button, toggle or pulse

? Large voltage operating range (VHI = 3.0 to 9V)

? Large temperature operating range (Tamb = -40 to 85°C)

? Internal voltage regulator

? Available in SO8 package