• DocumentCode
    1164748
  • Title

    Low-voltage pseudo-differential transconductor with improved tunability-linearity trade-off

  • Author

    Calvo, B. ; Celma, S. ; Ramírez-Angulo, J. ; Sanz, M.T.

  • Author_Institution
    Group of Electron. Design, Univ. of Zaragoza, Spain
  • Volume
    42
  • Issue
    15
  • fYear
    2006
  • fDate
    7/20/2006 12:00:00 AM
  • Firstpage
    862
  • Lastpage
    863
  • Abstract
    A new low-voltage pseudo-differential CMOS transconductor using transistors in the saturation region is presented. It keeps the input common-mode voltage constant, while its transconductance is easily tunable through a DC voltage preserving linearity for a moderate range of Gm values. Post-layout results for a 2.7 V-0.5 μm CMOS design dissipating less than 1.5 mW show a 1:2 Gm tuning range with an almost constant bandwidth over 600 MHz. Total harmonic distortion figures are below -60 dB over the whole range at 10 MHz up to a 100 μAp-p differential output.
  • Keywords
    CMOS analogue integrated circuits; integrated circuit design; low-power electronics; operational amplifiers; 0.5 micron; 10 MHz; 2.7 V; CMOS design; CMOS transconductor; DC voltage linearity; harmonic distortion; input common-mode voltage; pseudo-differential transconductor; saturation region; tunability-linearity trade-off;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20061772
  • Filename
    1683662
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1164748