Integrated accelerometer with capacitance to digital interface circuit design based on monolithic 0.18μm CMOS MEMS technology

Chun Chieh Wang, Long Sheng Fan*, Kuei-Ann Wen

*此作品的通信作者

    研究成果: Conference contribution同行評審

    2 引文 斯高帕斯(Scopus)

    摘要

    A monolithic accelerometer with integrated capacitance to digital readout circuit implemented in mixed-signal MEMS process is proposed to demonstrate sensor-to-bit integration. The sensing range is from -5g to 5g and the variation of the capacitance is from 441.2fF to 470fF. The sensitivity of the accelerometer is 2.88fF/g. The capacitance value of the sensing range is readout by the capacitance to digital circuit to readout. The capacitance to time circuit of the sensitivity is 6.94us/pF which is equivalent to 20ns/1bit. The digital output can be obtained without analog to digital module, and thus with power saving advantage, the output signal can be directly interface to digital signal process.

    原文English
    主出版物標題IEEE SENSORS 2012 - Proceedings
    DOIs
    出版狀態Published - 1 12月 2012
    事件11th IEEE SENSORS 2012 Conference - Taipei, Taiwan
    持續時間: 28 10月 201231 10月 2012

    出版系列

    名字Proceedings of IEEE Sensors

    Conference

    Conference11th IEEE SENSORS 2012 Conference
    國家/地區Taiwan
    城市Taipei
    期間28/10/1231/10/12

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