AD7148 Datasheet | Analog Devices

Programmable Touch Controller for Single Electrode Capacitance Sensors Features .. Programmable capacitance-to-digital converter (CDC) Femtofarad (fF) resolution 8 capacitance sensor inputs 25 ms update rate, all 8 sensor inputs No external RC ponents required Automatic conversion sequencer On-chip automatic calibration logic Automatic pensation for environmental changes Automatic adaptive threshold and sensitivity levels Register map patible with AD7143 On-chip RAM to store calibration data I2C-patible serial interface Separate VDRIVE level for serial interface Interrupt output 16-lead, 4 mm × 4 mm LFCSP 2.6 V to 3.3 V supply voltage Low operating...