DC Field | Value | Language |
---|---|---|
dc.contributor.author | Koo, Nahmil | ko |
dc.contributor.author | Kim, Hyojun | ko |
dc.contributor.author | Cho, Seonghwan | ko |
dc.date.accessioned | 2023-02-17T02:00:34Z | - |
dc.date.available | 2023-02-17T02:00:34Z | - |
dc.date.created | 2022-07-26 | - |
dc.date.issued | 2023-02 | - |
dc.identifier.citation | IEEE JOURNAL OF SOLID-STATE CIRCUITS, v.58, no.2, pp.508 - 519 | - |
dc.identifier.issn | 0018-9200 | - |
dc.identifier.uri | http://hdl.handle.net/10203/305198 | - |
dc.description.abstract | In this article, we present an electrocardiogram (ECG) amplifier that has a large total CMRR (TCMRR) regardless of contact impedance mismatch and a large tolerance to common-mode interference (CMI). To achieve these features, an adaptive TCMRR enhancing loop is implemented in parallel with a charge-pump-based common-mode suppressing loop (CMSL). It adjusts the CMI current through each contact impedance so that common-mode (CM) to differential-mode (DM) conversion is minimized. We also propose a fast settling technique for the adaptive loop so that contact impedance variation can be tracked fast enough to allow robust ECG acquisition. A prototype chip fabricated in 180-nm CMOS achieves TCMRR larger than 105 dB even when there is contact impedance mismatch of up to 30%. It also achieves tolerance to CMI of 18 V-PP at 60 Hz and input-referred noise of 1.90 mu Vrms while consuming 43.3 mu W. | - |
dc.language | English | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | A 43.3-mu W Biopotential Amplifier With Tolerance to Common-Mode Interference of 18 V-pp and T-CMRR of 105 dB in 180-nm CMOS | - |
dc.type | Article | - |
dc.identifier.wosid | 000824727000001 | - |
dc.identifier.scopusid | 2-s2.0-85134271912 | - |
dc.type.rims | ART | - |
dc.citation.volume | 58 | - |
dc.citation.issue | 2 | - |
dc.citation.beginningpage | 508 | - |
dc.citation.endingpage | 519 | - |
dc.citation.publicationname | IEEE JOURNAL OF SOLID-STATE CIRCUITS | - |
dc.identifier.doi | 10.1109/JSSC.2022.3185988 | - |
dc.contributor.localauthor | Cho, Seonghwan | - |
dc.contributor.nonIdAuthor | Koo, Nahmil | - |
dc.contributor.nonIdAuthor | Kim, Hyojun | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Analog front-end | - |
dc.subject.keywordAuthor | biopotential amplifier | - |
dc.subject.keywordAuthor | common-mode interference (CMI) | - |
dc.subject.keywordAuthor | electrocardiogram (ECG) | - |
dc.subject.keywordAuthor | total CMRR (T-CMRR) | - |
dc.subject.keywordAuthor | wearable healthcare | - |
dc.subject.keywordPlus | ECG | - |
dc.subject.keywordPlus | SOC | - |
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