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AD7147A

Analog Devices
Part Number AD7147A
Manufacturer Analog Devices
Description CapTouch Programmable Controller
Published Jul 3, 2010
Detailed Description CapTouch Programmable Controller for Single-Electrode Capacitance Sensors AD7147A SWITCH MATRIX 06663-001 FEATURES Pro...
Datasheet PDF File AD7147A PDF File

AD7147A
AD7147A

Overview
CapTouch Programmable Controller for Single-Electrode Capacitance Sensors AD7147A SWITCH MATRIX 06663-001 FEATURES 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 interface (AD7147A-1) Separate VDRIVE level for serial interface Interrupt output and ...


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