• DocumentCode
    1528420
  • Title

    An active-feedback cascode current source

  • Author

    Yang, Howard C. ; Allstot, David J.

  • Author_Institution
    Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
  • Volume
    37
  • Issue
    5
  • fYear
    1990
  • fDate
    5/1/1990 12:00:00 AM
  • Firstpage
    644
  • Lastpage
    646
  • Abstract
    An MOS cascode current source that employs both active and passive series feedback is reported. Small-signal analysis and SPICE simulation results show that a CMOS implementation of the active-feedback cascode current source provides an output open-circuit Thevinin voltage greater than 106 V. This represents an increase of about two orders of magnitude as compared with the conventional cascode current source. The active-feedback cascode current source maintains the same output voltage swing range as the conventional double cascode
  • Keywords
    CMOS integrated circuits; constant current sources; feedback; CMOS implementation; MOS; SPICE simulation; active-feedback cascode current source; output open-circuit Thevinin voltage; output voltage swing; passive series feedback; small-signal analysis; Analog integrated circuits; Analytical models; Feedback circuits; Helium; Impedance; Mirrors; Negative feedback; Output feedback; SPICE; Voltage;
  • fLanguage
    English
  • Journal_Title
    Circuits and Systems, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0098-4094
  • Type

    jour

  • DOI
    10.1109/31.55008
  • Filename
    55008