Part # AD7147A datasheet

Part Manufacturer: Analog Devices

Analog Devices

Part Description: AD7147A/AD7147A-1 CapTouch Programmable Controller for Single-Electrode Capacitance Sensors Data Sheet (Rev. A)


Part Details:

CapTouch Programmable Controller for Single-Electrode Capacitance Sensors AD7147A FEATURES FUNCTIONAL BLOCK DIAGRAM AC Programmable capacitance-to-digital converter (CDC) SHIELD VCC GND BIAS E4 D2 E2 E3 Femtofarad (ff) resolution 13 capacitance sensor inputs POWER-ON CIN0 D3 RESET LOGIC 9 ms update rate, all 13 sensor inputs CIN1 A3 No external RC components required CIN2 B3 Automatic conversion sequencer EXCITATION SOURCE CIN3 A4 On-chip automatic calibration logic CIN4 C3 Automatic compensation for environmental changes CIN5 A5 Automatic adaptive threshold and sensitivity levels H CALIBRATION C IX AD7147A R RAM CIN6 B4 IT T Register map is compatible with the AD714x SW MA CIN7 B5 On-chip RAM to store calibration data Serial peripheral interface (SPI) (AD7147A) CIN8 C4 16-BIT CALIBRATION - ENGINE I2C-compatible serial interface (AD7147A-1) CIN9 C5 CDC Separate V CIN10 D4


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AD7147A.pdf Datasheet