A 1.2V 83dB DR single-ended input SC sigma modulator including a large-swing analog buffer for portable ECG applications
DC Field | Value | Language |
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dc.contributor.author | Duan, Quanzhen | - |
dc.contributor.author | Jung, Youngjae | - |
dc.contributor.author | Choi, Danbi | - |
dc.contributor.author | Roh, Jeongjin | - |
dc.contributor.author | Kim, Jongpal | - |
dc.date.accessioned | 2021-06-22T15:44:15Z | - |
dc.date.available | 2021-06-22T15:44:15Z | - |
dc.date.created | 2021-01-21 | - |
dc.date.issued | 2016-12 | - |
dc.identifier.issn | 0098-9886 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/12177 | - |
dc.description.abstract | This study proposes a subsystem consisting of an analog buffer and a single-ended input to a fully differential sigma modulator to obtain low-power consumption for portable electrocardiogram applications. With the proposed subsystem, the need for an inverting amplifier is avoided, and low-power consumption is achieved. The sigma modulator with a second order, 1bit, and cascade of integrators feedforward structure consumes a low power, in which an inverting and a non-inverting path implement a single-ended input to fully-differential signals. A double sampling technique is proposed for a digital-to-analog converter feedback circuit to reduce the effect of the reference voltage, reduce the amplifier requirements, and obtain low-power consumption. Input-bias and output-bias transistors working in the weak-inversion region are implemented to obtain an extremely large swing for the analog buffer. At a supply voltage of 1.2V, signal bandwidth of 250Hz, and sampling frequency of 128kHz, the measurement results show that the modulator with a buffer achieves a 77dB peak signal-to-noise-distortion ratio, an effective-number-of-bits of 12.5 bits, an 83dB dynamic range, and a figure-of-merit of 156dB. The total chip size is approximately 0.28mm(2) with a standard 0.13 mu m Complementary Metal-Oxide-Silicon (CMOS) process. Copyright (c) 2016 John Wiley & Sons, Ltd. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | WILEY | - |
dc.title | A 1.2V 83dB DR single-ended input SC sigma modulator including a large-swing analog buffer for portable ECG applications | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Roh, Jeongjin | - |
dc.identifier.doi | 10.1002/cta.2219 | - |
dc.identifier.scopusid | 2-s2.0-85007543389 | - |
dc.identifier.wosid | 000389841700009 | - |
dc.identifier.bibliographicCitation | INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS, v.44, no.12, pp.2164 - 2173 | - |
dc.relation.isPartOf | INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS | - |
dc.citation.title | INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS | - |
dc.citation.volume | 44 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 2164 | - |
dc.citation.endPage | 2173 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.subject.keywordPlus | LOW-POWER | - |
dc.subject.keywordPlus | LOW-VOLTAGE | - |
dc.subject.keywordPlus | DELTA-ADC | - |
dc.subject.keywordAuthor | electrocardiogram | - |
dc.subject.keywordAuthor | low-power consumption | - |
dc.subject.keywordAuthor | analog buffer | - |
dc.subject.keywordAuthor | single-end input | - |
dc.subject.keywordAuthor | sigma modulator | - |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/10.1002/cta.2219 | - |
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