Datasheet Summary
24-Bit Capacitance-to-Digital Converter with Temperature Sensor AD7747
Features
GENERAL DESCRIPTION
Capacitance-to-digital converter New standard in single chip solutions Interfaces to single or differential grounded sensors Resolution down to 20 aF (that is, up to 19.5-bit ENOB) Accuracy: 10 fF Linearity: 0.01% mon-mode (not changing) capacitance up to 17 pF Full-scale (changing) capacitance range ±8 pF Update rate: 5 Hz to 45 Hz Simultaneous 50 Hz and 60 Hz rejection at 8.1 Hz update Active shield for shielding sensor connection
Temperature sensor on-chip Resolution: 0.1°C, accuracy: ±2°C
Voltage input channel Internal clock oscillator 2-wire serial interface (I2C® patible)...