A 189.3dB-FoMs14.5fJ/Conversion-Step Continuous-Time Noise-Shaping SAR Capacitance-to-Digital Converter

Gichan Yun; Haidam Choi; Yoontae Jung; Jiho Myung; Sein Oh; Sohmyung Ha; Minkyu Je

doi:10.1109/ISSCC49661.2025.10904611

A 189.3dB-FoM_s14.5fJ/Conversion-Step Continuous-Time Noise-Shaping SAR Capacitance-to-Digital Converter

Gichan Yun, Haidam Choi, Yoontae Jung, Jiho Myung, Sein Oh, Sohmyung Ha, Minkyu Je

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

Abstract

In recent years, capacitance-to-digital converters (CDCs) have attracted significant attention in IoT applications to monitor environmental conditions such as humidity [1-3] and pressure [3-5]. One of the key challenges is how accurately they can measure small capacitance variations caused by changes in dielectric properties at lower power consumption, increasing the demand for power-efficient high-resolution CDCs. Among various topologies, the ΔΣM-based structure has emerged as a preferred choice for its ability to achieve high resolution by oversampling and noise-shaping. However, its capacitance-resolution performance is still limited by the kT/C and flicker noises.

Original language	English (US)
Title of host publication	2025 IEEE International Solid-State Circuits Conference, ISSCC 2025
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9798331541019
DOIs	https://doi.org/10.1109/ISSCC49661.2025.10904611
State	Published - 2025
Event	72nd IEEE International Solid-State Circuits Conference, ISSCC 2025 - San Francisco, United States Duration: Feb 16 2025 → Feb 20 2025

Publication series

Name	Digest of Technical Papers - IEEE International Solid-State Circuits Conference
ISSN (Print)	0193-6530

Conference

Conference	72nd IEEE International Solid-State Circuits Conference, ISSCC 2025
Country/Territory	United States
City	San Francisco
Period	2/16/25 → 2/20/25

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Access to Document

10.1109/ISSCC49661.2025.10904611

Cite this

Yun, G., Choi, H., Jung, Y., Myung, J., Oh, S., Ha, S., & Je, M. (2025). A 189.3dB-FoM_s14.5fJ/Conversion-Step Continuous-Time Noise-Shaping SAR Capacitance-to-Digital Converter. In 2025 IEEE International Solid-State Circuits Conference, ISSCC 2025 (Digest of Technical Papers - IEEE International Solid-State Circuits Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISSCC49661.2025.10904611

A 189.3dB-FoM_s14.5fJ/Conversion-Step Continuous-Time Noise-Shaping SAR Capacitance-to-Digital Converter. / Yun, Gichan; Choi, Haidam; Jung, Yoontae et al.
2025 IEEE International Solid-State Circuits Conference, ISSCC 2025. Institute of Electrical and Electronics Engineers Inc., 2025. (Digest of Technical Papers - IEEE International Solid-State Circuits Conference).

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

Yun, G, Choi, H, Jung, Y, Myung, J, Oh, S, Ha, S & Je, M 2025, A 189.3dB-FoM_s14.5fJ/Conversion-Step Continuous-Time Noise-Shaping SAR Capacitance-to-Digital Converter. in 2025 IEEE International Solid-State Circuits Conference, ISSCC 2025. Digest of Technical Papers - IEEE International Solid-State Circuits Conference, Institute of Electrical and Electronics Engineers Inc., 72nd IEEE International Solid-State Circuits Conference, ISSCC 2025, San Francisco, United States, 2/16/25. https://doi.org/10.1109/ISSCC49661.2025.10904611

Yun G, Choi H, Jung Y, Myung J, Oh S, Ha S et al. A 189.3dB-FoM_s14.5fJ/Conversion-Step Continuous-Time Noise-Shaping SAR Capacitance-to-Digital Converter. In 2025 IEEE International Solid-State Circuits Conference, ISSCC 2025. Institute of Electrical and Electronics Engineers Inc. 2025. (Digest of Technical Papers - IEEE International Solid-State Circuits Conference). doi: 10.1109/ISSCC49661.2025.10904611

Yun, Gichan ; Choi, Haidam ; Jung, Yoontae et al. / A 189.3dB-FoM_s14.5fJ/Conversion-Step Continuous-Time Noise-Shaping SAR Capacitance-to-Digital Converter. 2025 IEEE International Solid-State Circuits Conference, ISSCC 2025. Institute of Electrical and Electronics Engineers Inc., 2025. (Digest of Technical Papers - IEEE International Solid-State Circuits Conference).

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