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Capacitive 8-channel touch and proximity sensor with auto-calibration and very low power consumption
- This page contains information on a product that is no longer manufactured (discontinued). Specifications and information herein are available for historical reference only.
The integrated circuit PCA8885 is a capacitive 8-channel touch and proximity sensor to detects a change in capacitance on remote sensing plates. Changes in the static capacitances (as opposed to dynamic capacitance changes) are automatically compensated using continuous auto-calibration. Remote sensing plates (for example, conductive foils) can be connected to the IC using coaxial cable. The eight input channels operate independently of each other. There is also a built-in option for a matrix arrangement of the sensors: interrupt generation only when two channels are activated simultaneously, suppression of additional channel outputs when two channels are already active.
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