AD7147A Datasheet CapTouch Programmable Controller

Manufacturer: Analog Devices

Datasheet Details

Part number	AD7147A
Manufacturer	Analog Devices
File Size	670.61 KB
Description	CapTouch Programmable Controller
Download	AD7147A Download (PDF)

The AD7147A CapTouch™ controller is designed for use with capacitance sensors implementing functions such as buttons, scroll bars, and wheels.

The sensors need only one PCB layer, enabling ultrathin applications.

The AD7147A is an integrated CDC with on-chip environmental calibration.

CapTouch Programmable Controller for Single-Electrode Capacitance Sensors AD7147A SWITCH.

Programmable capacitance-to-digital converter (CDC) Femtofarad (fF) resolution 13 capacitance sensor inputs 9 ms update rate, all 13 sensor inputs No external RC components required Automatic conversion sequencer On-chip automatic calibration logic Automatic compensation for environmental changes Automatic adaptive threshold and sensitivity levels Register map is compatible with the AD714x On-chip RAM to store calibration data Serial peripheral interface (SPI) (AD7147A) I2C-compatible serial int.

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