Part # AD7143 datasheet

Part Manufacturer: Analog Devices

Analog Devices

Part Description: AD7143 Programmable Controller for Capacitance Touch Sensors Data Sheet (Rev. 0)

Part Details:

Programmable Controller for Capacitance Touch Sensors AD7143 FEATURES FUNCTIONAL BLOCK DIAGRAM Programmable capacitance-to-digital converter POWER-ON 25 ms update rate (@ maximum sequence length) CIN0 15 AD7143 RESET LOGIC Better than 1 fF resolution CIN1 16 8 capacitance sensor input channels CIN2 1 H IX No external RC tuning components required CIN3 2 C 16-BIT R CALIBRA- IT T - TION Automatic conversion sequencer CIN4 3 CDC ENGINE SW MA CIN5 4 On-chip automatic calibration logic CIN6 5 CALIBRA- 9 VCC Automatic compensation for environmental changes CIN7 6 TION CONTROL RAM 10 GND Automatic adaptive threshold and sensitivity levels AND DATA On-chip RAM to store calibration data REGISTERS I2C®-compatible serial interface CSHIELD 7 250kHz Separate VDRIVE level for serial interface EXCITATION SRC 8

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AD7143.pdf Datasheet