A CMOS/SOI single-input PWM discriminator for low-voltage body-implanted applications

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dc.contributor.authorDe Lima, J. A.
dc.contributor.authorSilva, S. F.
dc.contributor.authorCordeiro, A. S.
dc.contributor.authorVerleysen, M.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Catholique Louvain
dc.date.accessioned2014-05-20T15:26:58Z
dc.date.available2014-05-20T15:26:58Z
dc.date.issued2002-08-01
dc.description.abstractA CMOS/SOI circuit to decode Pulse-Width Modulation (PWM) signals is presented as part of a body-implanted neurostimulator for visual prosthesis. Since encoded data is the sole input to the circuit, the decoding technique is based on a novel double-integration concept and does not require low-pass filtering. Non-overlapping control phases are internally derived from the incoming pulses and a fast-settling comparator ensures good discrimination accuracy in the megahertz range. The circuit was integrated on a 2 mum single-metal thin-film CMOS/SOI fabrication process and has an effective area of 2 mm(2). Measured resolution of encoding parameter a is better than 10% at 6 MHz and V-DD = 3.3 V. Idle-mode consumption is 340 LW. Pulses of frequencies up to 15 MHz and alpha = 10% can be discriminated for 2.3 V less than or equal to V-DD less than or equal to 3.3 V. Such an excellent immunity to V-DD deviations meets a design specification with respect to inherent coupling losses on transmitting data and power by means of a transcutaneous link.en
dc.description.affiliationUniv Estadual Paulista, Dept Elect Engn, BR-12516410 Guaratingueta, SP, Brazil
dc.description.affiliationUniv Catholique Louvain, Microelect Lab, B-1348 Louvain, Belgium
dc.description.affiliationUnespUniv Estadual Paulista, Dept Elect Engn, BR-12516410 Guaratingueta, SP, Brazil
dc.format.extent469-476
dc.identifierhttp://dx.doi.org/10.1080/1065514021000012075
dc.identifier.citationVlsi Design. Abingdon: Taylor & Francis Ltd, v. 15, n. 1, p. 469-476, 2002.
dc.identifier.doi10.1080/1065514021000012075
dc.identifier.fileWOS000179649600007.pdf
dc.identifier.issn1065-514X
dc.identifier.urihttp://hdl.handle.net/11449/37030
dc.identifier.wosWOS:000179649600007
dc.language.isoeng
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofVlsi Design
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectPWM decoderpt
dc.subjectSOI designpt
dc.subjectlow-voltage comparatorspt
dc.subjectimplanted circuitspt
dc.subjectvisual prosthesispt
dc.titleA CMOS/SOI single-input PWM discriminator for low-voltage body-implanted applicationsen
dc.typeArtigo
dcterms.licensehttp://www.hindawi.com/journals/vlsi/guidelines/
dcterms.rightsHolderTaylor & Francis Ltd
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt

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