A Low-Complexity Correlation-Based Time Skew Estimation Technique for Time-Interleaved SAR ADCs

DC FieldValueLanguage
dc.contributor.authorSalib, Armia-
dc.contributor.authorCardiff, Barry-
dc.contributor.authorFlanagan, Mark F.-
dc.date.accessioned2019-10-08T15:26:42Z-
dc.date.available2019-10-08T15:26:42Z-
dc.date.copyright2017 IEEEen_US
dc.date.issued2017-05-31-
dc.identifier.isbn9781467368520-
dc.identifier.issn0271-4310-
dc.identifier.urihttp://hdl.handle.net/10197/11131-
dc.descriptionThe 2017 IEEE International Symposium on Circuits and Systems (ISCAS), Baltimore, Maryland, United States of America, 28-31 May 2017en_US
dc.description.abstractThis paper presents a technique to estimate the time skew in time-interleaved ADCs. The proposed method estimates all of the time skew parameters jointly based on observations from a bank of correlators. The proposed method works for an arbitrary number of sub-ADCs. For implementation of the correlator bank, we propose the use of Mitchell's logarithmic multiplier and a hardware reuse mechanism, thereby reducing the complexity and power consumption. Also, we explain why blind estimation techniques alone (including the proposed one) are not always sufficient for time skew estimation for certain classes of input signal; for the proposed approach, however, a simple modification to the analogue circuit (suitable for SAR ADCs) is shown to successfully deal with such problems, with only a minor penalty in power and area. The technique is verified by extensive simulations including a spectrally rich input signal in which an MTPR (multi-tone power ratio) improvement from 29dB to 62dB was achieved for a TIADC system having 16 sub-ADCs.en_US
dc.description.sponsorshipEuropean Commission - European Regional Development Funden_US
dc.description.sponsorshipScience Foundation Irelanden_US
dc.language.isoenen_US
dc.publisherIEEEen_US
dc.relation.ispartof2017 IEEE International Symposium on Circuits and Systems (ISCAS) Proceedingsen_US
dc.rights© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en_US
dc.subjectTIADCen_US
dc.subjectTime skewen_US
dc.subjectEstimationen_US
dc.subjectBlind calibrationen_US
dc.titleA Low-Complexity Correlation-Based Time Skew Estimation Technique for Time-Interleaved SAR ADCsen_US
dc.typeConference Publicationen_US
dc.internal.authorcontactothermark.flanagan@ucd.ieen_US
dc.statusPeer revieweden_US
dc.identifier.doi10.1109/ISCAS.2017.8050309-
dc.neeo.contributorSalib|Armia|aut|-
dc.neeo.contributorCardiff|Barry|aut|-
dc.neeo.contributorFlanagan|Mark F.|aut|-
dc.date.updated2019-09-05T16:14:42Z-
dc.identifier.grantid13/RC/2077-
item.fulltextWith Fulltext-
item.grantfulltextopen-
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