A Capacitively Coupled CT Delta Sigma M With Chopping Artifacts Rejection for Sensor Readout ICs
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lim, Chaegang | - |
dc.contributor.author | Choi, Yohan | - |
dc.contributor.author | Park, Yunsoo | - |
dc.contributor.author | Song, Jaegeun | - |
dc.contributor.author | Ahn, Soon-Sung | - |
dc.contributor.author | Park, Sooho | - |
dc.contributor.author | Kim, Chulwoo | - |
dc.date.accessioned | 2022-02-25T21:41:10Z | - |
dc.date.available | 2022-02-25T21:41:10Z | - |
dc.date.created | 2022-02-09 | - |
dc.date.issued | 2021-08 | - |
dc.identifier.issn | 1549-8328 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/136918 | - |
dc.description.abstract | This paper presents a sensor readout integrated circuit (ROIC) using a capacitively coupled instrumentation amplifier (CCIA)-embedded continuous-time Delta Sigma modulator (CT Delta Sigma M) incorporating chopping artifact rejection. Chopping is an essential technique for suppressing the offset and 1/f noise. However, the chopping artifacts in the modulator loop degrade the in-band noise, linearity, and loop stability. In the proposed design, chopping aliasing is avoided by setting the chopping frequency (f(ch)) same as the sampling frequency (f(s)). The chopping ripple is mitigated using the ripple reduction loop (RRL), and the shaped quantization noise-folding resulting from the RRL is prevented by minimizing the loop gain and bandwidth of the RRL. The residual ripple and spikes are filtered out using the alias rejection band of CT Delta Sigma M. The third-order loop filter enables sufficient noise-shaping with a low oversampling ratio (OSR). The chip is implemented in a 180-nm CMOS process with an active area of 1.65 mm(2), drawing 232.2 mu A at a 1.8 V supply. The proposed capacitively coupled (CC)-CT Delta Sigma M has a 19.4 nV/root Hz input-referred noise density, 1.9 mu V offset, 0.08% gain error, 16 ppm integral nonlinearity (INL), and 140 dB common-mode rejection ratio (CMRR) within an input range of 60 mV(pp). With -110.1 dB total harmonic distortion (THD), excellent dynamic linearity performance is achieved owing to the CCIA-integrated design and chopping artifact rejection technique. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.subject | INSTRUMENTATION AMPLIFIER | - |
dc.subject | CORNER | - |
dc.subject | ADC | - |
dc.title | A Capacitively Coupled CT Delta Sigma M With Chopping Artifacts Rejection for Sensor Readout ICs | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Chulwoo | - |
dc.identifier.doi | 10.1109/TCSI.2021.3084350 | - |
dc.identifier.scopusid | 2-s2.0-85107330498 | - |
dc.identifier.wosid | 000673472700012 | - |
dc.identifier.bibliographicCitation | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, v.68, no.8, pp.3242 - 3253 | - |
dc.relation.isPartOf | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | - |
dc.citation.title | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | - |
dc.citation.volume | 68 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 3242 | - |
dc.citation.endPage | 3253 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.subject.keywordPlus | ADC | - |
dc.subject.keywordPlus | CORNER | - |
dc.subject.keywordPlus | INSTRUMENTATION AMPLIFIER | - |
dc.subject.keywordAuthor | 1/f noise | - |
dc.subject.keywordAuthor | CCIA | - |
dc.subject.keywordAuthor | CT Delta Sigma M | - |
dc.subject.keywordAuthor | RRL | - |
dc.subject.keywordAuthor | analog-to-digital converter (ADC) | - |
dc.subject.keywordAuthor | chopping artifacts | - |
dc.subject.keywordAuthor | chopping technique | - |
dc.subject.keywordAuthor | noise-folding | - |
dc.subject.keywordAuthor | ripple | - |
dc.subject.keywordAuthor | sensor readout IC | - |
dc.subject.keywordAuthor | spike | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.