• DocumentCode
    3624294
  • Title

    Continuous Gain Calibration of Parallel Delta Sigma A/D Converters

  • Author

    Alma Delic-Ibukic;Donald M. Hummels

  • Author_Institution
    Department of Electrical and Computer Engineering, University of Maine, 5708 Barrows Hall, Orono, ME 04469-5708, USA
  • fYear
    2006
  • fDate
    4/1/2006 12:00:00 AM
  • Firstpage
    905
  • Lastpage
    909
  • Abstract
    A method to correct for gain errors in each channel of a parallel delta-sigma (PiDeltaSigma) converters in real-time is presented. The calibration technique requires an additional channel that is linearly dependant on PiDeltaSigma channels used. By introducing the redundancy in a system, the adaptive LMS algorithm can be used to correct for gain errors within the channels. Using a 16-channel PiDeltaSigma converter with 4th order delta-sigma modulators and oversampling rate of 6, the simulation results show a 90 dB reduction in unwanted tones caused by 1% gain mismatch
  • Keywords
    "Calibration","Bandwidth","Error correction","Linearity","Redundancy","Delta modulation","Pipelines","CMOS technology","Instrumentation and measurement","Computer errors"
  • Publisher
    ieee
  • Conference_Titel
    Instrumentation and Measurement Technology Conference, 2006. IMTC 2006. Proceedings of the IEEE
  • ISSN
    1091-5281
  • Print_ISBN
    0-7803-9359-7
  • Type

    conf

  • DOI
    10.1109/IMTC.2006.328244
  • Filename
    4124465
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3624294