• DocumentCode
    995711
  • Title

    Analysis of low-frequency noise reduction by autozero technique

  • Author

    Enz, C.

  • Author_Institution
    Swiss Federal Institute of Technology, Electronics Laboratory, Lausanne, Switzerland
  • Volume
    20
  • Issue
    23
  • fYear
    1984
  • Firstpage
    959
  • Lastpage
    960
  • Abstract
    This letter analyses the low-frequency noise reduction produced by the autozero technique. A very simple model is established, and the output average power spectrum in the case of lowpass filtered white noise and 1/f noise is calculated. This analysis clearly shows the limitation to low-frequency noise reduction introduced by the foldover effect.
  • Keywords
    CMOS integrated circuits; low-pass filters; operational amplifiers; random noise; white noise; 1/f noises; CMO operational amplifier; autozero technique; foldover effect; low-frequency noise reduction; lowpass filtered white noise; output average power spectrum;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19840652
  • Filename
    4249165