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    Pseudo-three-stage Miller op-amp with enhanced small-signal and large-signal performance

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    Date
    2019
    Author
    Paul, Anindita 
    Ramírez-Angulo, Jaime 
    López Martín, Antonio Upna Orcid
    González Carvajal, Ramón 
    Rocha-Pérez, José Miguel 
    Version
    Acceso abierto / Sarbide irekia
    Type
    Artículo / Artikulua
    Version
    Versión aceptada / Onetsi den bertsioa
    Project Identifier
    ES/1PE/TEC2016-80396 
    Impact
     
     
     
    10.1109/TVLSI.2019.2918235
     
     
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    Abstract
    A simple technique to implement highly power efficient class AB-AB Miller op-amps is presented in this paper. It uses a composite input stage with resistive local common mode feedback that provides class AB operation to the input stage and essentially enhances the op-amp's effective transconductance gain, the dc open-loop gain, the gain-bandwidth product, and slew rate with just moderate increase ... [++]
    A simple technique to implement highly power efficient class AB-AB Miller op-amps is presented in this paper. It uses a composite input stage with resistive local common mode feedback that provides class AB operation to the input stage and essentially enhances the op-amp's effective transconductance gain, the dc open-loop gain, the gain-bandwidth product, and slew rate with just moderate increase in power dissipation. The experimental results of op-amps in strong inversion and subthreshold fabricated in a 130-nm standard CMOS technology validate the proposed approach. The op-amp has 9 V·pF/μs·μW large-signal figure of merit (FOM) and 17 MHz · pF/μW small-signal FOM with 1.2-V supply voltage. In subthreshold, the op-amp has 10 V · pF/μs · μW large-signal FOM and 92 MHz · pF/μW small-signal FOM with 0.5-V supply voltage. [--]
    Subject
    Analog integrated circuits, Class AB–AB Miller op-amps, Miller compensation, Resistive local common mode feedback
     
    Publisher
    IEEE
    Published in
    IEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 27, no. 10, October 2019
    Departament
    Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicación / Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa, Elektronikoa eta Telekomunikazio Ingeniaritza Saila / Universidad Pública de Navarra/Nafarroako Unibertsitate Publikoa. Institute of Smart Cities - ISC
     
    Publisher version
    https://doi.org/10.1109/TVLSI.2019.2918235
    URI
    https://hdl.handle.net/2454/39603
    Sponsorship
    This work was supported by Grant TEC2016-80396- C2-R (AEI/FEDER).
    Appears in Collections
    • Artículos de revista DIEC - IEKS Aldizkari artikuluak [349]
    • Artículos de revista ISC - ISC aldizkari artikuluak [466]
    • Artículos de revista - Aldizkari artikuluak [4926]
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