On designing linearly tunable high-Q OTA-C filters with low sensitivity

Detalhes bibliográficos
Autor(a) principal: De Lima, Jader A. [UNESP]
Data de Publicação: 2004
Outros Autores: Alcaide, Fernando M. [UNESP]
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1109/ISCAS.2004.1328121
http://hdl.handle.net/11449/67874
Resumo: This paper discusses a design approach for a high-Q low-sensitivity OTA-C biquad bandpass section. An optimal relationship is established between transconductances defining the differenceβ - γ in the Q-factor denominator, setting the Q-sensitivity to tuning voltages around unity. A 30-MHz filter was designed based on a 0.35μn CMOS process and VDD=3.3V. A range of circuit simulation supports the theoretical analysis. Q-factor spans from 20.5 to 60, while ensuring filter stability along the tuning range. Although a Mode-operating OTA is used, the procedure can be extended to other types of transconductor.
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spelling On designing linearly tunable high-Q OTA-C filters with low sensitivityAspect ratioCMOS integrated circuitsComputer simulationElectric potentialIntegrated circuit layoutQ factor measurementSensitivity analysisTransconductanceTriodesTuningBiquad loopsCircuit simulationFilter DesignsFilter stabilityBandpass filtersThis paper discusses a design approach for a high-Q low-sensitivity OTA-C biquad bandpass section. An optimal relationship is established between transconductances defining the differenceβ - γ in the Q-factor denominator, setting the Q-sensitivity to tuning voltages around unity. A 30-MHz filter was designed based on a 0.35μn CMOS process and VDD=3.3V. A range of circuit simulation supports the theoretical analysis. Q-factor spans from 20.5 to 60, while ensuring filter stability along the tuning range. Although a Mode-operating OTA is used, the procedure can be extended to other types of transconductor.Lab. of VLSI Des./Instrumentation Electrical Engineering Dept. Universidade Estadual Paulista, 12516-410 Guaratinguetá - SPLab. of VLSI Des./Instrumentation Electrical Engineering Dept. Universidade Estadual Paulista, 12516-410 Guaratinguetá - SPUniversidade Estadual Paulista (Unesp)De Lima, Jader A. [UNESP]Alcaide, Fernando M. [UNESP]2014-05-27T11:21:09Z2014-05-27T11:21:09Z2004-09-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://dx.doi.org/10.1109/ISCAS.2004.1328121Proceedings - IEEE International Symposium on Circuits and Systems, v. 1.0271-4310http://hdl.handle.net/11449/6787410.1109/ISCAS.2004.13281212-s2.0-4344706334Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProceedings - IEEE International Symposium on Circuits and Systems0,237info:eu-repo/semantics/openAccess2024-07-01T20:12:24Zoai:repositorio.unesp.br:11449/67874Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:10:47.604720Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv On designing linearly tunable high-Q OTA-C filters with low sensitivity
title On designing linearly tunable high-Q OTA-C filters with low sensitivity
spellingShingle On designing linearly tunable high-Q OTA-C filters with low sensitivity
De Lima, Jader A. [UNESP]
Aspect ratio
CMOS integrated circuits
Computer simulation
Electric potential
Integrated circuit layout
Q factor measurement
Sensitivity analysis
Transconductance
Triodes
Tuning
Biquad loops
Circuit simulation
Filter Designs
Filter stability
Bandpass filters
title_short On designing linearly tunable high-Q OTA-C filters with low sensitivity
title_full On designing linearly tunable high-Q OTA-C filters with low sensitivity
title_fullStr On designing linearly tunable high-Q OTA-C filters with low sensitivity
title_full_unstemmed On designing linearly tunable high-Q OTA-C filters with low sensitivity
title_sort On designing linearly tunable high-Q OTA-C filters with low sensitivity
author De Lima, Jader A. [UNESP]
author_facet De Lima, Jader A. [UNESP]
Alcaide, Fernando M. [UNESP]
author_role author
author2 Alcaide, Fernando M. [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv De Lima, Jader A. [UNESP]
Alcaide, Fernando M. [UNESP]
dc.subject.por.fl_str_mv Aspect ratio
CMOS integrated circuits
Computer simulation
Electric potential
Integrated circuit layout
Q factor measurement
Sensitivity analysis
Transconductance
Triodes
Tuning
Biquad loops
Circuit simulation
Filter Designs
Filter stability
Bandpass filters
topic Aspect ratio
CMOS integrated circuits
Computer simulation
Electric potential
Integrated circuit layout
Q factor measurement
Sensitivity analysis
Transconductance
Triodes
Tuning
Biquad loops
Circuit simulation
Filter Designs
Filter stability
Bandpass filters
description This paper discusses a design approach for a high-Q low-sensitivity OTA-C biquad bandpass section. An optimal relationship is established between transconductances defining the differenceβ - γ in the Q-factor denominator, setting the Q-sensitivity to tuning voltages around unity. A 30-MHz filter was designed based on a 0.35μn CMOS process and VDD=3.3V. A range of circuit simulation supports the theoretical analysis. Q-factor spans from 20.5 to 60, while ensuring filter stability along the tuning range. Although a Mode-operating OTA is used, the procedure can be extended to other types of transconductor.
publishDate 2004
dc.date.none.fl_str_mv 2004-09-07
2014-05-27T11:21:09Z
2014-05-27T11:21:09Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1109/ISCAS.2004.1328121
Proceedings - IEEE International Symposium on Circuits and Systems, v. 1.
0271-4310
http://hdl.handle.net/11449/67874
10.1109/ISCAS.2004.1328121
2-s2.0-4344706334
url http://dx.doi.org/10.1109/ISCAS.2004.1328121
http://hdl.handle.net/11449/67874
identifier_str_mv Proceedings - IEEE International Symposium on Circuits and Systems, v. 1.
0271-4310
10.1109/ISCAS.2004.1328121
2-s2.0-4344706334
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Proceedings - IEEE International Symposium on Circuits and Systems
0,237
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129029921832960

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