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AD7147 - CapTouch Programmable Controller

Description

The AD7147 is designed for use with capacitance sensors implementing functions such as buttons, scroll bars, and wheels.

The sensors need only one PCB layer, enabling ultra thin applications.

The AD7147 is an integrated CDC with on-chip environmental calibration.

Features

  • www. datasheet4u. com Programmable capacitance-to-digital converter (CDC) Femtofarad 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 AD7142 On-chip RAM to store calibration data SPI-compatible (serial-peripheral-interface-compatible.

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Datasheet preview – AD7147

Datasheet Details

Part number AD7147
Manufacturer Analog Devices
File Size 1.02 MB
Description CapTouch Programmable Controller
Datasheet download datasheet AD7147 Datasheet
Additional preview pages of the AD7147 datasheet.

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Full PDF Text Transcription

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CapTouch™ Programmable Controller for Single-Electrode Capacitance Sensors AD7147 FEATURES www.datasheet4u.com Programmable capacitance-to-digital converter (CDC) Femtofarad 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 AD7142 On-chip RAM to store calibration data SPI-compatible (serial-peripheral-interface-compatible) serial interface (AD7147) I2C-compatible serial interface (AD7147-1) Separate VDRIVE level for serial interface Interrupt output and general-purpose input/output (GPIO) 24-lead, 4 mm × 4 mm LFCSP 2.
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