1. [1] K.C. Baby and B. George: “A simple analog front-end circuit for grounded capacitive sensors with offset capacitance,” IEEE Instrumentation & Measurement Technology Conference (2013) (DOI: 10.1109/I2MTC.2013.6555638).
2. [2] B. Li, et al.: “A 1 pF-to-10 nF generic capacitance-to-digital converter using zero-crossing ΔΣ modulation,” IEEE Trans. Circuits Syst. I, Reg. Papers (2017) (DOI: 10.1109/TCSI.2017.2777872).
3. [3] B. Li, et al.: “A high-linearity capacitance-to-digital converter suppressing charge errors from bottom-plate switches,” IEEE Trans. Circuits Syst. I, Reg. Papers 61 (2014) (DOI: 10.1109/TCSI.2014.2298285).
4. [4] H.-Y. Park, et al.: “A touch sensor readout circuit using switched- capacitor charge pump,” IEICE Electron. Express 9 (2012) (DOI: 10.1587/elex.9.1090).
5. [5] R. Yang and S. Nihtianov: “A time/resistor-referenced capacitive sensor interface for displacement measurement in the sub-nanometer range,” IEEE International Symposium on Industrial Electronics (2013) (DOI: 10.1109/ISIE.2013.6563796).