• DocumentCode
    453678
  • Title

    A method to effectively decrease the settling time of gain-boost OTA

  • Author

    Huang, Feipeng ; Huang, Yumei ; Ze, Dedong ; Hong, Zhiliang

  • Author_Institution
    ASIC & Syst. State Key Lab., Fudan Univ., Shanghai
  • Volume
    1
  • fYear
    2005
  • fDate
    24-0 Oct. 2005
  • Firstpage
    419
  • Lastpage
    422
  • Abstract
    A method was proposed to decrease the settling time of gain-boost folded cascode operational trans-conductance amplifier (OTA). Through the small-signal analysis of gain-boost OTA, the expression of pole and zero was attained successfully; then the effect of pole-zero (doublet) on settling time was revealed fully. To reduce its effect, a method was finally proposed that the unity-gain frequency (omegaur) of regulation amplifier should be a little larger than the unity-gain frequency (omegauc) of core amplifier. This method was proven to be effective by simulation result
  • Keywords
    operational amplifiers; poles and zeros; gain-boost OTA; operational transconductance amplifier; settling time; small-signal analysis; Application specific integrated circuits; Capacitors; Energy consumption; Feedback circuits; Filters; Frequency; Laboratories; Operational amplifiers; Poles and zeros; Transfer functions;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    ASIC, 2005. ASICON 2005. 6th International Conference On
  • Conference_Location
    Shanghai
  • Print_ISBN
    0-7803-9210-8
  • Type

    conf

  • DOI
    10.1109/ICASIC.2005.1611350
  • Filename
    1611350
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=453678