• DocumentCode
    804720
  • Title

    CMOS fully-differential bandpass ΣΔ modulator using switched-current circuits

  • Author

    de la Rosa, J.M. ; Verdú, B. Pérez ; Medeiro, F. ; Vázquez, A. Rodríguez

  • Author_Institution
    Centro Nacional de Microelectronica, Saville, Spain
  • Volume
    32
  • Issue
    3
  • fYear
    1996
  • fDate
    2/1/1996 12:00:00 AM
  • Firstpage
    156
  • Lastpage
    157
  • Abstract
    The authors present a fourth-order bandpass ΣΔ switched-current modulator IC in 0.8 μm CMOS single-poly technology. It is the first reported integrated circuit realisation of a bandpass ΣΔ modulator using switched-current circuits. Its architecture is obtained by applying a lowpass to bandpass transformation (z1→-z2) to a second-order lowpass modulator. It has been realised using fully-differential circuitry with common-mode feedback. Measurements show 8 bit dynamic range up to 5 MHz clock frequency
  • Keywords
    CMOS integrated circuits; circuit feedback; modulators; sigma-delta modulation; switched current circuits; 0.8 micron; 5 MHz; CMOS single-poly technology; SI modulator IC; Si; bandpass ΣΔ modulator; bandpass sigma-delta modulator; common-mode feedback; fully-differential circuitry; integrated circuit realisation; lowpass to bandpass transformation; switched-current circuits;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19960164
  • Filename
    490766
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=804720