The ZSSC3123AA2R cLite™ is a CMOS integrated circuit for accurate capacitance-to-digital conversion and sensor-specific correction of capacitive sensor signals. Digital compensation of sensor offset, sensitivity and temperature drift is accomplished via an internal digital signal processor running a correction algorithm with calibration coefficients stored in a nonvolatile EEPROM. The ZSSC3123AA2R is configurable for capacitive sensors with capacitances up to 260pF and a sensitivity of 125aF/LSB to 1pF/LSB depending on resolution, speed, and range settings. It is compatible with both single capacitive sensors (both terminals must be accessible) and differential capacitive sensors. Measured and corrected sensor values can be output as I2C, SPI, PDM, or alarms. The I2C interface can be used for a simple PC-controlled calibration procedure to program a set of calibration coefficients into an on-chip EEPROM. The calibrated ZSSC3123AA2R and a specific sensor are mated digitally: fast, precise, and without the cost overhead of trimming by external devices or laser.
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Renesas Electronics America Inc.
Renesas Electronics Corporation 通過完整的半導體解決方案提供值得信賴的嵌入式設計創新,使數十億互聯的智能設備能夠改善人們安全可靠的工作和生活方式。 作為微控制器、模擬、電源和 SoC 產品及集成平台的全球領導者,瑞薩為廣泛的汽車、工業、家用電子、辦公自動化和信息通信技術應用提供專業知識、質量和全面的解決方案,以幫助塑造一個 無限的未來。
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