AD7747

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% Common-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® compatible) Power 2.7 V to 5.25 V single-supply operation 0.7 mA current consumption Operating temperature: −40°C to +125°C 16-lead TSSOP package APPLICATIONS Automotive, industrial, and medical systems for Pressure measurement Position sensing Proximity sensing Level sensing Flow metering Impurity detection...