A high-resolution oscillator based resistance-to-digital converter with non-linearity canceling feedback by Δς modulated variable resistor

Shuya Nakagawa, Takumi Miyazaki, Hiroki Ishikuro

研究成果: Conference contribution

抄録

A Time-Domain Resistance-to-Digital Converter (RDC) with a referential 1-bit ΔΣ Modulated variable resistor is proposed. The proposed RDC converts an input resistance to a frequency and compares a referential variable resistor to decrease a sensor read-out error caused by a non-linearity of an oscillation frequency. A 1-bit ΔΣ modulated variable resistor is demodulated by an oscillator and a counter. Hence a low-pass filter circuit is not required. In addition, non-linearity canceling feedback is proposed to decrease comparison time. This prototype RDC achieves 10.1bits conductance resolution at 1kSps in 10μS to 110μS full-scale range.

本文言語English
ホスト出版物のタイトル2020 IEEE International Symposium on Circuits and Systems, ISCAS 2020 - Proceedings
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781728133201
出版ステータスPublished - 2020
イベント52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020 - Virtual, Online
継続期間: 2020 10 102020 10 21

出版物シリーズ

名前Proceedings - IEEE International Symposium on Circuits and Systems
2020-October
ISSN(印刷版)0271-4310

Conference

Conference52nd IEEE International Symposium on Circuits and Systems, ISCAS 2020
CityVirtual, Online
Period20/10/1020/10/21

ASJC Scopus subject areas

  • 電子工学および電気工学

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