• DocumentCode
    1234232
  • Title

    A Sub 1-V Constant Gm– C Switched-Capacitor Current Source

  • Author

    Gregoire, B. Robert ; Moon, Un-Ku

  • Author_Institution
    Oregon State Univ., Corvallis, OR
  • Volume
    54
  • Issue
    3
  • fYear
    2007
  • fDate
    3/1/2007 12:00:00 AM
  • Firstpage
    222
  • Lastpage
    226
  • Abstract
    A switched-capacitor bias that provides a constant Gm-C characteristic over process and temperature variation is presented. The bias can be adapted for use with subthreshold circuits, or circuits in strong inversion. It uses eight transistors, five switches, and three capacitors, and performs with supply voltages less than 0.9 V. Theoretical output current is derived, and stability analysis is performed. Simulated results showing an op-amp with very consistent pulse response are presented
  • Keywords
    constant current sources; operational amplifiers; switched capacitor networks; switches; transistors; 1 V; Gm-C filters; constant transconductance; op-amp; stability analysis; subthreshold circuits; switched-capacitor current source; transistors; Bandwidth; Capacitance; Capacitors; Circuit simulation; Moon; Operational amplifiers; Resistors; Temperature; Transconductance; Voltage; $G_{m}$–$C$ filters; Constant $G_{m}$– $C$; constant transconductance; switched-capacitor current source;
  • fLanguage
    English
  • Journal_Title
    Circuits and Systems II: Express Briefs, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    1549-7747
  • Type

    jour

  • DOI
    10.1109/TCSII.2006.889446
  • Filename
    4132957
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1234232