A 0.5-V Sub-10-mu W 15.28-m Omega/root Hz Bio-Impedance Sensor IC With Sub-1 degrees Phase Error

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dc.contributor.authorKim, Kwantaeko
dc.contributor.authorKim, Ji-Hoonko
dc.contributor.authorGweon, Surinko
dc.contributor.authorKim, Minseoko
dc.contributor.authorYoo, Hoi-Junko
dc.date.accessioned2021-03-26T02:35:35Z-
dc.date.available2021-03-26T02:35:35Z-
dc.date.created2020-08-10-
dc.date.issued2020-08-
dc.identifier.citationIEEE JOURNAL OF SOLID-STATE CIRCUITS, v.55, no.8, pp.2161 - 2173-
dc.identifier.issn0018-9200-
dc.identifier.urihttp://hdl.handle.net/10203/281950-
dc.description.abstractContinuous monitoring of fluid status through bio-impedance (Bio-Z) measurement of thoracic magnitude or phase is critical in reducing the mortality of chronic heart failure (CHF) patients. However, the stringent power constraints of implantable devices force the design of Bio-Z sensors to be highly challenging. We present a sub-10-mu W Bio-Z sensor IC operating from a 0.5 V-supply, sustaining a sub-1 degrees of phase error even under 10% of supply and 0 degrees C-70 degrees C of temperature variations. Fabricated in a 65-nm CMOS process, this sensor IC exhibits a 15.28-m Omega/root Hz of input-referred impedance noise performance, occupying a 4.83 mm(2). Its linearity performance shows that the magnitude and the phase of Bio-Z can be measured within the error of 2% and 0.4 degrees, respectively, given that the magnitude of load impedance is less than 126 Omega, and thus, it is suitable for fluid status monitoring applications. Experimental measurement on the human chest demonstrates its capabilities of thoracic impedance variance (TIV) and impedance cardiography (ICG) monitoring.-
dc.languageEnglish-
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC-
dc.titleA 0.5-V Sub-10-mu W 15.28-m Omega/root Hz Bio-Impedance Sensor IC With Sub-1 degrees Phase Error-
dc.typeArticle-
dc.identifier.wosid000552195700013-
dc.identifier.scopusid2-s2.0-85094152559-
dc.type.rimsART-
dc.citation.volume55-
dc.citation.issue8-
dc.citation.beginningpage2161-
dc.citation.endingpage2173-
dc.citation.publicationnameIEEE JOURNAL OF SOLID-STATE CIRCUITS-
dc.identifier.doi10.1109/JSSC.2020.2991511-
dc.contributor.localauthorYoo, Hoi-Jun-
dc.contributor.nonIdAuthorGweon, Surin-
dc.contributor.nonIdAuthorKim, Minseo-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorPhase measurement-
dc.subject.keywordAuthorMonitoring-
dc.subject.keywordAuthorImpedance-
dc.subject.keywordAuthorModulation-
dc.subject.keywordAuthorBiosensors-
dc.subject.keywordAuthorIntegrated circuits-
dc.subject.keywordAuthorMeasurement uncertainty-
dc.subject.keywordAuthorBio-impedance (Bio-Z)-
dc.subject.keywordAuthorchronic heart failure (CHF)-
dc.subject.keywordAuthorheart rate (HR)-
dc.subject.keywordAuthorimpedance cardiography (ICG)-
dc.subject.keywordAuthorimplantable device-
dc.subject.keywordAuthorinput-referred impedance noise-
dc.subject.keywordAuthorinstrumentation amplifier (IA)-
dc.subject.keywordAuthorlead compensation (LC)-
dc.subject.keywordAuthorleft-ventricular ejection time (LVET)-
dc.subject.keywordAuthorlow supply-
dc.subject.keywordAuthorphase-
dc.subject.keywordAuthorthoracic impedance variance (TIV)-
dc.subject.keywordPlusIMPEDANCE TOMOGRAPHY SOC-
dc.subject.keywordPlusLOW-DROPOUT REGULATOR-
dc.subject.keywordPlusHEART-FAILURE-
dc.subject.keywordPlusCOMPENSATION-
dc.subject.keywordPlusFOLLOWER-
dc.subject.keywordPlusCANCER-
dc.subject.keywordPlusRISK-
dc.subject.keywordPlusECG-
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