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Multibit Incremental Data Converters

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dc.contributor.advisorOmid Oliaei
dc.contributor.advisorRobert W. Jackson
dc.contributor.advisorPatrick A. Kelly
dc.contributor.authorMehrabi, Arash
dc.contributor.departmentUniversity of Massachusetts - Amherst
dc.date2023-09-23T09:12:32.000
dc.date.accessioned2024-04-26T13:44:16Z
dc.date.available2014-06-09T00:00:00Z
dc.date.issued2010-05-01
dc.description.abstractThis research work focuses on the advantages and challenges of using a multibit quantizer within the loop of an Incremental Data Converter. Substituting the commonly used single-bit quantizer (simply one comparator) with a multibit quantizer, allows for significantly faster conversion times, reduced signal swings and increased input signal range. Therefore the multibit incremental data converter takes advantage of significantly lowered energy per conversion, longer device battery life and improved Figure of Merit. This work explains some of the major challenges that accompany the usage of multibit quantizers in the loop and suggests methods and solutions to overcome these challenges, therefore making the implementation of multibit incremental data converters a possibility. Additionally, the required theoretical background, top-level and circuit-level design details and measurement results of a programmable third-order 3-bit incremental data converter are provided as a proof of concept. The measurements show that the 3-bit incremental data converter can achieve an accuracy of as high as 18 bits, while consuming as little as 390μW resulting in an energy-per-conversion orders of magnitude lower than state-of-the-art and significantly improved figure of merit.
dc.description.degreeDoctor of Philosophy (PhD)
dc.description.departmentElectrical and Computer Engineering
dc.identifier.doihttps://doi.org/10.7275/5669699
dc.identifier.urihttps://hdl.handle.net/20.500.14394/11698
dc.relation.urlhttps://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1165&context=dissertations_1&unstamped=1
dc.source.statuspublished
dc.subjectApplied sciences
dc.subjectData weighted averaging
dc.subjectDynamic element matching
dc.subjectIncremental data converters
dc.subjectSigma delta modulators
dc.subjectElectrical and Computer Engineering
dc.titleMultibit Incremental Data Converters
dc.typecampus
dc.typearticle
dc.typedissertation
digcom.contributor.authorMehrabi, Arash
digcom.date.embargo2014-06-09T00:00:00-07:00
digcom.identifierdissertations_1/166
digcom.identifier.contextkey5669699
digcom.identifier.submissionpathdissertations_1/166
dspace.entity.typePublication
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