A Fully Differential Difference Transconductance Amplifier Topology Based on CMOS Inverters

This manuscript presents a fully differential difference transconductance amplifier (FDDTA) architecture based on CMOS inverters. Designed in a 130-nm CMOS process it operates in weak inversion when supplied with 0.25 V. In addition, the FDDTA requires no supplementary external calibration circuit,...

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Main Authors: Otávio Soares Silva, Rodrigo Aparecido da Silva Braga, Paulo Marcos Pinto, Luís Henrique de Carvalho Ferreira, Gustavo Della Colletta
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/12/4/963
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author Otávio Soares Silva
Rodrigo Aparecido da Silva Braga
Paulo Marcos Pinto
Luís Henrique de Carvalho Ferreira
Gustavo Della Colletta
author_facet Otávio Soares Silva
Rodrigo Aparecido da Silva Braga
Paulo Marcos Pinto
Luís Henrique de Carvalho Ferreira
Gustavo Della Colletta
author_sort Otávio Soares Silva
collection DOAJ
description This manuscript presents a fully differential difference transconductance amplifier (FDDTA) architecture based on CMOS inverters. Designed in a 130-nm CMOS process it operates in weak inversion when supplied with 0.25 V. In addition, the FDDTA requires no supplementary external calibration circuit, like tail current or bias voltage sources, since it relies on the distributed layout technique that intrinsically matches the CMOS inverters. For analytical purposes, we carried out a detailed investigation that describes all the concepts and the whole operation of the FDDTA architecture. Furthermore, a comparison between the modeling equations and measured data assures high performance.
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spelling doaj.art-4226c977adee4f22be87294242756bdf2023-11-16T20:12:53ZengMDPI AGElectronics2079-92922023-02-0112496310.3390/electronics12040963A Fully Differential Difference Transconductance Amplifier Topology Based on CMOS InvertersOtávio Soares Silva0Rodrigo Aparecido da Silva Braga1Paulo Marcos Pinto2Luís Henrique de Carvalho Ferreira3Gustavo Della Colletta4Institute of Science and Technology, Federal University of Itajuba, Itabira 35903-087, MG, BrazilInstitute of Science and Technology, Federal University of Itajuba, Itabira 35903-087, MG, BrazilInstitute of Systems Engineering and Information Technology, Federal University of Itajuba, Itajuba 37500-903, MG, BrazilInstitute of Systems Engineering and Information Technology, Federal University of Itajuba, Itajuba 37500-903, MG, BrazilInstitute of Systems Engineering and Information Technology, Federal University of Itajuba, Itajuba 37500-903, MG, BrazilThis manuscript presents a fully differential difference transconductance amplifier (FDDTA) architecture based on CMOS inverters. Designed in a 130-nm CMOS process it operates in weak inversion when supplied with 0.25 V. In addition, the FDDTA requires no supplementary external calibration circuit, like tail current or bias voltage sources, since it relies on the distributed layout technique that intrinsically matches the CMOS inverters. For analytical purposes, we carried out a detailed investigation that describes all the concepts and the whole operation of the FDDTA architecture. Furthermore, a comparison between the modeling equations and measured data assures high performance.https://www.mdpi.com/2079-9292/12/4/963fully differential difference transconductance amplifierCMOS invertersdifferential buffer configurationweak inversion regionlow-power circuits
spellingShingle Otávio Soares Silva
Rodrigo Aparecido da Silva Braga
Paulo Marcos Pinto
Luís Henrique de Carvalho Ferreira
Gustavo Della Colletta
A Fully Differential Difference Transconductance Amplifier Topology Based on CMOS Inverters
Electronics
fully differential difference transconductance amplifier
CMOS inverters
differential buffer configuration
weak inversion region
low-power circuits
title A Fully Differential Difference Transconductance Amplifier Topology Based on CMOS Inverters
title_full A Fully Differential Difference Transconductance Amplifier Topology Based on CMOS Inverters
title_fullStr A Fully Differential Difference Transconductance Amplifier Topology Based on CMOS Inverters
title_full_unstemmed A Fully Differential Difference Transconductance Amplifier Topology Based on CMOS Inverters
title_short A Fully Differential Difference Transconductance Amplifier Topology Based on CMOS Inverters
title_sort fully differential difference transconductance amplifier topology based on cmos inverters
topic fully differential difference transconductance amplifier
CMOS inverters
differential buffer configuration
weak inversion region
low-power circuits
url https://www.mdpi.com/2079-9292/12/4/963
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