Reference-free high-speed cmos pipeline analog-to-digital converters

Detalhes bibliográficos
Autor(a) principal: Figueiredo, Michael
Data de Publicação: 2012
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/8776
Resumo: Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Electrical and Computer Engineering of the Faculdade de Ciências e Tecnologia of Universidade Nova de Lisboa
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spelling Reference-free high-speed cmos pipeline analog-to-digital convertersADCAmplifierCurrent-modeFeedback factorFlash quantizerInverter-basedSubmitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Electrical and Computer Engineering of the Faculdade de Ciências e Tecnologia of Universidade Nova de LisboaMore and more signal processing is being transferred to the digital domain to profit from the technological enhancement of digital circuits. Where technology scaling enhances the capabilities of digital circuits, it degrades the performance of analog circuits. However, it is important to note that the impact that technology scaling has on digital circuits is becoming smaller and smaller, which means that, in nanotechnologies, to enhance energy and area efficiency, we can not simply depend on the benefits of this scaling. Although, a share of the efficiency can be obtained from the technology, new circuit architectures and techniques have to be developed to really push the limits of efficiency. In data converters, more specifically analog-to-digital converters (ADCs), a decision can be made: research energy and area efficient analog circuit techniques and architectures that cope with technological scaling issues, or design algorithms that use digital circuitry to assist the poor analog technological performance. The former option is the premise for the work developed in this thesis. The work reported in this thesis explores various design techniques with the purpose of enhancing the power and area efficiency of building blocks mainly to be used in multiplying digital-to-analog converter based ADCs. Therefore, novel analog techniques are developed for the three main blocks of an MDAC-based stage, namely, the flash quantizer, the amplifier, and the switched capacitor network of the MDAC. These techniques include self-biasing and inverter-based design for the flash quantizer and amplifier. Regarding the MDAC, it combines three techniques: unity feedback factor, insensitivity to capacitor mismatch, and current-mode reference shifting. In the second part of this work, the designed amplifier is implemented and experimentally characterized demonstrating its practical feasibility and performance. The final part of this work explores the design and implementation of a medium-low resolution high speed pipeline ADC incorporating all the developed circuits. Experimental results validate the feasibility of the techniques and demonstrate the attractiveness in terms of power dissipation and reduced area.Faculdade de Ciências e TecnologiaGoes, JoãoEvans, GuiomarRUNFigueiredo, Michael20122012-01-01T00:00:00Zdoctoral thesisinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10362/8776TID:101272294enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-05-22T17:12:30Zoai:run.unl.pt:10362/8776Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-22T17:12:30Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Reference-free high-speed cmos pipeline analog-to-digital converters
title Reference-free high-speed cmos pipeline analog-to-digital converters
spellingShingle Reference-free high-speed cmos pipeline analog-to-digital converters
Figueiredo, Michael
ADC
Amplifier
Current-mode
Feedback factor
Flash quantizer
Inverter-based
title_short Reference-free high-speed cmos pipeline analog-to-digital converters
title_full Reference-free high-speed cmos pipeline analog-to-digital converters
title_fullStr Reference-free high-speed cmos pipeline analog-to-digital converters
title_full_unstemmed Reference-free high-speed cmos pipeline analog-to-digital converters
title_sort Reference-free high-speed cmos pipeline analog-to-digital converters
author Figueiredo, Michael
author_facet Figueiredo, Michael
author_role author
dc.contributor.none.fl_str_mv Goes, João
Evans, Guiomar
RUN
dc.contributor.author.fl_str_mv Figueiredo, Michael
dc.subject.por.fl_str_mv ADC
Amplifier
Current-mode
Feedback factor
Flash quantizer
Inverter-based
topic ADC
Amplifier
Current-mode
Feedback factor
Flash quantizer
Inverter-based
description Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Electrical and Computer Engineering of the Faculdade de Ciências e Tecnologia of Universidade Nova de Lisboa
publishDate 2012
dc.date.none.fl_str_mv 2012
2012-01-01T00:00:00Z
dc.type.driver.fl_str_mv doctoral thesis
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/8776
TID:101272294
url http://hdl.handle.net/10362/8776
identifier_str_mv TID:101272294
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Faculdade de Ciências e Tecnologia
publisher.none.fl_str_mv Faculdade de Ciências e Tecnologia
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
_version_ 1817545485425049600

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