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Current mode sigma-delta modulator designed with the help of transistor’s size optimization tool

2015Artigo científico Acesso aberto
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dc.contributor.authorSniatala, P.
dc.contributor.authorNaumowicz, M.
dc.contributor.authorHandkiewicz, A.
dc.contributor.authorSzczesny, S.
dc.contributor.authorDe Melo, João L A
dc.contributor.authorPaulino, Nuno Filipe Silva Veríssimo
dc.contributor.authorGoes, João Carlos da Palma
dc.contributor.institutionCTS - Centro de Tecnologia e Sistemas
dc.contributor.institutionUNINOVA-Instituto de Desenvolvimento de Novas Tecnologias
dc.contributor.pblPolska Akademia Nauk
dc.date.accessioned2017-05-30T14:02:12Z
dc.date.available2017-05-30T14:02:12Z
dc.date.issued2015
dc.description.abstractThe paper presents a second order current mode sigma-delta modulator designed with the help of a new elaborated tool to optimize the transistor sizes. The circuit is composed of two continuous time loop filters, a current comparator and a one bit DAC with a current output. The resulting circuit, designed in a 65 nm 1.2 V CMOS technology, has a bandwidth of 2 MHz for a clock frequency of 250 MHz. The electrical simulation results show that it achieves a maximum signal-to-noise-plus-distortion ratio (SNDR) of 53.6 dB while dissipating 93 mu W, which corresponds to an efficiency of 59.7 fJ/conv. The fully current mode structure makes the circuit suitable to be applied in a current mode signal processing like biosensors or image pixels arrays.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent1130401
dc.identifier.doi10.1515/bpasts-2015-0104
dc.identifier.issn0239-7528
dc.identifier.otherPURE: 1422779
dc.identifier.otherPURE UUID: 55be2714-3c70-4394-8b0a-5c5196f7aa07
dc.identifier.otherScopus: 84962129203
dc.identifier.otherWOS: 000369407700011
dc.identifier.urihttps://www.degruyter.com/view/j/bpasts.2015.63.issue-4/bpasts-2015-0104/bpasts-2015-0104.xml
dc.identifier.urlhttps://www.degruyter.com/view/j/bpasts.2015.63.issue-4/bpasts-2015-0104/bpasts-2015-0104.xml
dc.language.isoeng
dc.peerreviewedyes
dc.subjectCAE
dc.subjectCurrent comparator
dc.subjectSigma-delta
dc.titleCurrent mode sigma-delta modulator designed with the help of transistor’s size optimization toolen
dc.typejournal article
degois.publication.firstPage
degois.publication.issue4
degois.publication.lastPage
degois.publication.titleBulletin of the Polish Academy of Sciences: Technical Sciences
degois.publication.volume63
dspace.entity.typePublication
rcaap.rightsopenAccess

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