Modeling OpAmp-induced harmonic distortion for switched-capacitor ΣΔ modulator design

Medeiro Hidalgo, Fernando; Pérez Verdú, Belén; Rodríguez Vázquez, Ángel Benito; Huertas Díaz, José Luis

doi:10.1109/ISCAS.1994.409405

Ponencia

dc.creator	Medeiro Hidalgo, Fernando	es
dc.creator	Pérez Verdú, Belén	es
dc.creator	Rodríguez Vázquez, Ángel Benito	es
dc.creator	Huertas Díaz, José Luis	es
dc.date.accessioned	2020-03-10T15:50:42Z
dc.date.available	2020-03-10T15:50:42Z
dc.date.issued	1994
dc.identifier.citation	Medeiro Hidalgo, F., Pérez Verdú, B., Rodríguez Vázquez, Á.B. y Huertas Díaz, J.L. (1994). Modeling OpAmp-induced harmonic distortion for switched-capacitor ΣΔ modulator design. En IEEE International Symposium on Circuits and Systems (445-448), Londres, Reino Unido: Institute of Electrical and Electronics Engineers.
dc.identifier.isbn	0-7803-1915-X	es
dc.identifier.issn	0271-4310	es
dc.identifier.uri	https://hdl.handle.net/11441/94084
dc.description.abstract	This communication reports a new modeling of opamp-induced harmonic distortion in SC ΣΔ modulators, which is aimed to optimum design of this kind of circuit for high-performance applications. We analyze incomplete transfer of charge in a SC integrator and use power expansion and nonlinear fitting to obtain analytical models to represent harmonic distortion as function of the opamp finite gain-bandwidth (GB), slew-rate (SR) and nonlinear DC gain. Calculated models apply for all modulator architectures where harmonic distortion is dominated by the first integrator in the chain. We show that results provided by the new analytical models fit well to that obtained by simulation in time domain and have accuracy levels much larger than that provided by previously reported modeling approaches.	es
dc.format	application/pdf	es
dc.format.extent	4 p.	es
dc.language.iso	eng	es
dc.publisher	Institute of Electrical and Electronics Engineers	es
dc.relation.ispartof	IEEE International Symposium on Circuits and Systems (1994), p 445-448
dc.rights	Attribution-NonCommercial-NoDerivatives 4.0 Internacional	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/	*
dc.title	Modeling OpAmp-induced harmonic distortion for switched-capacitor ΣΔ modulator design	es
dc.type	info:eu-repo/semantics/conferenceObject	es
dcterms.identifier	https://ror.org/03yxnpp24
dc.type.version	info:eu-repo/semantics/acceptedVersion	es
dc.rights.accessRights	info:eu-repo/semantics/openAccess	es
dc.contributor.affiliation	Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo	es
dc.relation.publisherversion	https://doi.org/10.1109/ISCAS.1994.409405	es
dc.identifier.doi	10.1109/ISCAS.1994.409405	es
dc.publication.initialPage	445	es
dc.publication.endPage	448	es
dc.eventtitle	IEEE International Symposium on Circuits and Systems	es
dc.eventinstitution	Londres, Reino Unido	es

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