• DocumentCode
    439737
  • Title

    Constant-gm rail-to-rail input/output Op-Amp for video applications

  • Author

    Carrillo, J. Mena ; Austin, J.L. ; Duque-Carrillo, J.F. ; Torelli, G.

  • Author_Institution
    University of Extremadura, Badajoz, Spain
  • fYear
    2002
  • fDate
    24-26 Sept. 2002
  • Firstpage
    179
  • Lastpage
    182
  • Abstract
    An operational amplifier (op-amp) with input output (I/O) rail-to-rail (r-t-r) capability suitable for video applications is presented. The input stage provides a constant transconductance value over the entire input common-mode range, whereas a class-AB output stage with an accurate control of the quiescent current ensures r-t-r output swing. Both the input stage transconductance and the output stage quiescent current are controlled by means of static loops, which allows high-frequency operation of the amplifier. Experimental results from a 0.8-µm CMOS test chip are shown.
  • Keywords
    Circuit optimization; DC generators; Differential amplifiers; MOS devices; Rail to rail amplifiers; Tail; Transconductance; Variable structure systems; Virtual colonoscopy; Voltage;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Solid-State Circuits Conference, 2002. ESSCIRC 2002. Proceedings of the 28th European
  • Conference_Location
    Florence, Italy
  • Type

    conf

  • Filename
    1471495
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=439737