A Sub-aF Super-High-Resolution Capacitance-to-Digital Converter with a Bandpass ΔΣ ADC

Yoontae Jung; Soon Jae Kweon; Hyuntak Jeon; Jeongeun Lee; Youngin Kim; Sein Oh; Jimin Koo; Minkyu Je

doi:10.1109/ISCAS46773.2023.10181452

A Sub-aF Super-High-Resolution Capacitance-to-Digital Converter with a Bandpass ΔΣ ADC

Yoontae Jung
, Soon Jae Kweon
, Hyuntak Jeon
, Jeongeun Lee
, Youngin Kim
, Sein Oh
, Jimin Koo
, Minkyu Je

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Scopus citations

Abstract

A super-high-resolution capacitance-to-digital converter (CDC) capable of reaching sub-aF capacitance resolution has been proposed. The CDC employs a continuous-time (CT) low-noise capacitance-to-voltage converter (CVC) followed by a high linearity bandpass ΔΣ ADC (BP-ΔΣM) without frequency demodulation. By avoiding demodulation and utilizing a narrow-band sensing technique, the proposed CDC achieves a sub-aF capacitance resolution while expanding the input capacitance range through a coarse C-DAC calibration loop. The proposed circuit has been implemented in a 0.35-μm CMOS process with a 3.3 V power supply voltage. The CDC shows a capacitance resolution of 0.98 aFrms, with a capacitance range of 3.1 pF, while consuming 4.16 mW.

Original language	English
Title of host publication	ISCAS 2023 - 56th IEEE International Symposium on Circuits and Systems, Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781665451093
DOIs	https://doi.org/10.1109/ISCAS46773.2023.10181452
State	Published - 2023
Event	56th IEEE International Symposium on Circuits and Systems, ISCAS 2023 - Monterey, United States Duration: 21 May 2023 → 25 May 2023

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
Volume	2023-May
ISSN (Print)	0271-4310

Conference

Conference	56th IEEE International Symposium on Circuits and Systems, ISCAS 2023
Country/Territory	United States
City	Monterey
Period	21/05/23 → 25/05/23

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Keywords

Capacitance-to-digital converter
bandpass
gas sensor
sub-aF resolution
super-high-resolution
zetta-farad resolution

Access to Document

10.1109/ISCAS46773.2023.10181452

Cite this

Jung, Y., Kweon, S. J., Jeon, H., Lee, J., Kim, Y., Oh, S., Koo, J., & Je, M. (2023). A Sub-aF Super-High-Resolution Capacitance-to-Digital Converter with a Bandpass ΔΣ ADC. In ISCAS 2023 - 56th IEEE International Symposium on Circuits and Systems, Proceedings (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2023-May). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCAS46773.2023.10181452

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title = "A Sub-aF Super-High-Resolution Capacitance-to-Digital Converter with a Bandpass ΔΣ ADC",

abstract = "A super-high-resolution capacitance-to-digital converter (CDC) capable of reaching sub-aF capacitance resolution has been proposed. The CDC employs a continuous-time (CT) low-noise capacitance-to-voltage converter (CVC) followed by a high linearity bandpass ΔΣ ADC (BP-ΔΣM) without frequency demodulation. By avoiding demodulation and utilizing a narrow-band sensing technique, the proposed CDC achieves a sub-aF capacitance resolution while expanding the input capacitance range through a coarse C-DAC calibration loop. The proposed circuit has been implemented in a 0.35-μm CMOS process with a 3.3 V power supply voltage. The CDC shows a capacitance resolution of 0.98 aFrms, with a capacitance range of 3.1 pF, while consuming 4.16 mW.",

keywords = "Capacitance-to-digital converter, bandpass, gas sensor, sub-aF resolution, super-high-resolution, zetta-farad resolution",

author = "Yoontae Jung and Kweon, \{Soon Jae\} and Hyuntak Jeon and Jeongeun Lee and Youngin Kim and Sein Oh and Jimin Koo and Minkyu Je",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 56th IEEE International Symposium on Circuits and Systems, ISCAS 2023 ; Conference date: 21-05-2023 Through 25-05-2023",

year = "2023",

doi = "10.1109/ISCAS46773.2023.10181452",

language = "English",

series = "Proceedings - IEEE International Symposium on Circuits and Systems",

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Jung, Y, Kweon, SJ, Jeon, H, Lee, J, Kim, Y, Oh, S, Koo, J & Je, M 2023, A Sub-aF Super-High-Resolution Capacitance-to-Digital Converter with a Bandpass ΔΣ ADC. in ISCAS 2023 - 56th IEEE International Symposium on Circuits and Systems, Proceedings. Proceedings - IEEE International Symposium on Circuits and Systems, vol. 2023-May, Institute of Electrical and Electronics Engineers Inc., 56th IEEE International Symposium on Circuits and Systems, ISCAS 2023, Monterey, United States, 21/05/23. https://doi.org/10.1109/ISCAS46773.2023.10181452

A Sub-aF Super-High-Resolution Capacitance-to-Digital Converter with a Bandpass ΔΣ ADC. / Jung, Yoontae; Kweon, Soon Jae; Jeon, Hyuntak et al.
ISCAS 2023 - 56th IEEE International Symposium on Circuits and Systems, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2023. (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2023-May).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Jung, Yoontae

AU - Kweon, Soon Jae

AU - Jeon, Hyuntak

AU - Lee, Jeongeun

AU - Kim, Youngin

AU - Oh, Sein

AU - Koo, Jimin

AU - Je, Minkyu

PY - 2023

Y1 - 2023

N2 - A super-high-resolution capacitance-to-digital converter (CDC) capable of reaching sub-aF capacitance resolution has been proposed. The CDC employs a continuous-time (CT) low-noise capacitance-to-voltage converter (CVC) followed by a high linearity bandpass ΔΣ ADC (BP-ΔΣM) without frequency demodulation. By avoiding demodulation and utilizing a narrow-band sensing technique, the proposed CDC achieves a sub-aF capacitance resolution while expanding the input capacitance range through a coarse C-DAC calibration loop. The proposed circuit has been implemented in a 0.35-μm CMOS process with a 3.3 V power supply voltage. The CDC shows a capacitance resolution of 0.98 aFrms, with a capacitance range of 3.1 pF, while consuming 4.16 mW.

AB - A super-high-resolution capacitance-to-digital converter (CDC) capable of reaching sub-aF capacitance resolution has been proposed. The CDC employs a continuous-time (CT) low-noise capacitance-to-voltage converter (CVC) followed by a high linearity bandpass ΔΣ ADC (BP-ΔΣM) without frequency demodulation. By avoiding demodulation and utilizing a narrow-band sensing technique, the proposed CDC achieves a sub-aF capacitance resolution while expanding the input capacitance range through a coarse C-DAC calibration loop. The proposed circuit has been implemented in a 0.35-μm CMOS process with a 3.3 V power supply voltage. The CDC shows a capacitance resolution of 0.98 aFrms, with a capacitance range of 3.1 pF, while consuming 4.16 mW.

KW - Capacitance-to-digital converter

KW - bandpass

KW - gas sensor

KW - sub-aF resolution

KW - super-high-resolution

KW - zetta-farad resolution

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M3 - Conference contribution

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T3 - Proceedings - IEEE International Symposium on Circuits and Systems

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ER -

Jung Y, Kweon SJ, Jeon H, Lee J, Kim Y, Oh S et al. A Sub-aF Super-High-Resolution Capacitance-to-Digital Converter with a Bandpass ΔΣ ADC. In ISCAS 2023 - 56th IEEE International Symposium on Circuits and Systems, Proceedings. Institute of Electrical and Electronics Engineers Inc. 2023. (Proceedings - IEEE International Symposium on Circuits and Systems). doi: 10.1109/ISCAS46773.2023.10181452

A Sub-aF Super-High-Resolution Capacitance-to-Digital Converter with a Bandpass ΔΣ ADC

Abstract

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Bibliographical note

Keywords

Access to Document

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