Integrated Device Technology Sensor and Detector Interfaces ZSSC3122AA1C

The ZSSC3122AA1C is a CMOS integrated circuit designed for precise capacitance-to-digital conversion and sensor-specific correction of capacitive sensor signals. It supports capacitive sensors with capacitances up to 10pF and a sensitivity of 125aF/LSB. The device features digital compensation for sensor offset, sensitivity, and temperature drift, utilizing an internal digital signal processor with calibration coefficients stored in non-volatile EEPROM. This product is compatible with both single and differential capacitive sensors, providing output options via I2C, SPI, or PDM. It allows for a straightforward PC-controlled calibration process and offers sampling rates as fast as 0.7ms at 8-bit resolution. The ZSSC3122AA1C operates within a supply voltage range of 1.8V to 5.5V, with typical current consumption varying from 60OºA to 650OºA, and a sleep mode current of less than 1OºA at 85¬8C. The operational temperature range is from -20¬8C to +125¬8C, making it suitable for various applications, including low-power battery-operated devices. The device is available in a TSSOP14 package, facilitating easy integration into designs.