A Hybrid-Domain Two-Step Time-to-Digital Converter Using a Switch-Based Time-to-Voltage Converter and SAR ADC

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dc.contributor.authorKim, Junghoko
dc.contributor.authorKim, Young-Hwako
dc.contributor.authorKim, KwangSeokko
dc.contributor.authorYu, Wonsikko
dc.contributor.authorCho, SeongHwanko
dc.date.accessioned2015-07-23T01:44:28Z-
dc.date.available2015-07-23T01:44:28Z-
dc.date.created2015-05-14-
dc.date.created2015-05-14-
dc.date.issued2015-07-
dc.identifier.citationIEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, v.62, no.7, pp.631 - 635-
dc.identifier.issn1549-7747-
dc.identifier.urihttp://hdl.handle.net/10203/200160-
dc.description.abstractIn this brief, an energy-efficient time-to-digital converter (TDC) using a hybrid of time-and voltage-domain circuits is presented. The proposed TDC operates in two steps, i.e., first in the time domain by using a delay-line TDC and then in the voltage domain by using a successive-approximation-register analog-to-digital converter. The time residue of the first stage is converted to voltage by using a switch-based time-to-voltage converter (TVC) that eliminates the need for a current source with large output impedance. To improve the linearity of the proposed TVC, pseudodifferential time-domain signaling is presented. A prototype chip fabricated in the 65-nm CMOS achieves 630 fs of time resolution at 120 megasamples/s while consuming 3.7 mW from a 1.2-V supply. The figure of merit is 244 fJ/conversion-step, which is the best among the recently published high-speed TDCs.-
dc.languageEnglish-
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC-
dc.subjectCMOS-
dc.titleA Hybrid-Domain Two-Step Time-to-Digital Converter Using a Switch-Based Time-to-Voltage Converter and SAR ADC-
dc.typeArticle-
dc.identifier.wosid000357126000003-
dc.identifier.scopusid2-s2.0-84934296533-
dc.type.rimsART-
dc.citation.volume62-
dc.citation.issue7-
dc.citation.beginningpage631-
dc.citation.endingpage635-
dc.citation.publicationnameIEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS-
dc.identifier.doi10.1109/TCSII.2015.2415631-
dc.contributor.localauthorCho, SeongHwan-
dc.contributor.nonIdAuthorKim, KwangSeok-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorNonidealities-
dc.subject.keywordAuthorsuccessive approximation register (SAR)-
dc.subject.keywordAuthortime domain-
dc.subject.keywordAuthortime-to-digital converter (TDC)-
dc.subject.keywordAuthortime-to-voltage converter (TVC)-
dc.subject.keywordPlusCMOS-
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