• DocumentCode
    1008119
  • Title

    Technique for offset voltage cancellation in MOS operational amplifiers

  • Author

    Wong, S.L. ; Salama, C.A.T.

  • Author_Institution
    University of Toronto, Department of Electrical Engineering, Toronto, Canada
  • Volume
    21
  • Issue
    9
  • fYear
    1985
  • Firstpage
    389
  • Lastpage
    390
  • Abstract
    A novel technique for the continuous-time removal of the input offset voltage in operational amplifiers is presented. This scheme converts a conventional op-amp into a similar differential-in/differential-out op-amp with zero differential input offset voltage. The nonzero common-mode input offset voltage can be isolated using a sampled-data time-averaging technique and minimised by negative feedback.
  • Keywords
    feedback; field effect integrated circuits; linear integrated circuits; operational amplifiers; MOS operational amplifiers; continuous-time removal; differential-in/differential-out op-amp; linear IC; negative feedback; nonzero common-mode input offset voltage; offset voltage cancellation; sampled-data time-averaging technique;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19850277
  • Filename
    4251133
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1008119