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Capacitive Sensor Circuit with Relative Slope-Boost Method Based on a Relaxation Oscillator

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Hiroyuki ItoAuthors Info & Claims

ASPDAC '21: Proceedings of the 26th Asia and South Pacific Design Automation Conference

Pages 5 - 6

https://doi.org/10.1145/3394885.3431655

Published: 29 January 2021 Publication History

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Abstract

This paper presents a relative slope-boosting technique for a capacitive sensor circuit based on a relaxation oscillator. Our technique improves jitter, i.e. resolution, by changing both the voltage slope on the sensing and the reference sides with respect to the sensor capacitance. The sensor prototype circuit is implemented in a 180-nm standard CMOS process and achieves resolution of 710 aF while consuming 12.7 pJ energy every cycle of 13.78 kHz output frequency. The measured power consumption from a 1.2 V DC supply is 430 nW.

References

[1]

A. Alhoshany and K. N. Salama, "A Precision, Energy-Efficient, Over-sampling, Noise-Shaping Differential SAR Capacitance-to-Digital Converter," IEEE Trans. Instrum. Meas., vol. 68, no. 2, pp. 392--401, 2019.

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Google Scholar

[2]

Y. Luo and C. Heng, "Capacitance-to-Digital Converter with Reduced Data Throughput," Symp. VLSI Circuits, pp. 165--166, 2018.

Google Scholar

[3]

Y. He, Z.-Y. Chang, L. Pakula, S. H. Shalmany, and M. Pertijs, "A 0.05 mm2 1 V capacitance-to-digital converter based on period modulation," IEEE ISSCC Dig. Tech. Papers, pp. 486--487, 2015.

Google Scholar

[4]

D. Griffith, P. T. Roine, J. Murdock, and R. Smith, "A 190nW 33kHz RC Oscillator with ±0.21% Temperature Stability and 4ppm Long-Term Stability," ISSCC Dig. Tech. Papers, pp. 300--301, 2014.

Google Scholar

[5]

J. Lee, A. George, and M. Je, "A 1.4V 10.5MHz swing-boosted differential relaxation oscillator with 162.1dBc/Hz FOM and 9.86psrms period jitter in 0.18μm CMOS," ISSCC Dig. Tech. Papers, pp. 106--108, 2016.

Google Scholar

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ASPDAC '21: Proceedings of the 26th Asia and South Pacific Design Automation Conference

January 2021

930 pages

ISBN:9781450379991

DOI:10.1145/3394885

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Association for Computing Machinery

New York, NY, United States

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Published: 29 January 2021

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SIGDA

ASPDAC '21: 26th Asia and South Pacific Design Automation Conference

January 18 - 21, 2021

Tokyo, Japan

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ASPDAC '21 Paper Acceptance Rate 111 of 368 submissions, 30%;

Overall Acceptance Rate 466 of 1,454 submissions, 32%

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