• DocumentCode
    17589
  • Title

    Efficient technique for excess loop delay compensation in continuous-time ΔΣ modulators

  • Author

    Zhang, Ye ; Chen, C.H. ; Temes, Gabor C.

  • Author_Institution
    Department of Electrical and Computer Science, Kelley Engineering Centre, Oregon State University, OR, USA
  • Volume
    49
  • Issue
    24
  • fYear
    2013
  • fDate
    November 21 2013
  • Firstpage
    1522
  • Lastpage
    1523
  • Abstract
    A highly digital technique is proposed for excess loop delay (ELD) compensation in multi-bit continuous-time ΔΣ modulators. A digitally controlled reference switching matrix is used to replace the powerhungry signal adder and extra DAC driving the quantiser, which are commonly used in ELD compensation. With the proposed technique, the feedback DAC is embedded in the quantiser and implemented by a few switches. Thus, it allows low-voltage and low-power operation.
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el.2013.3470
  • Filename
    6680410