• DocumentCode
    1669877
  • Title

    A 0.6V 82dB ΔΣ audio ADC using switched-RC integrators

  • Author

    Ahn, Gil-Cho ; Chang, Dong-Young ; Brown, Matthew ; Ozaki, Naoto ; Youra, Hiroshi ; Yamamura, Ken ; Hamashita, Koichi ; Takasuka, Kaoru ; Temes, Gabor C. ; Moon, Un-Ku

  • Author_Institution
    Oregon State Univ., Corvallis, OR, USA
  • fYear
    2005
  • Firstpage
    166
  • Abstract
    A 2-2 MASH ADC consumes 1mW from a 0.6V supply. It utilizes a local feedback loop for large input range, and switched-RC integrators to achieve high linearity without clock boosting or bootstrapping. The prototype IC is fabricated in a 0.35μm CMOS process. It provides 82dB DR over the A-weighted audio band, and 103dB SFDR at -3dBFS input.
  • Keywords
    CMOS integrated circuits; RC circuits; analogue-digital conversion; audio signal processing; circuit feedback; delta-sigma modulation; integrating circuits; switched capacitor networks; ΔΣ audio ADC; 0.35 micron; 0.6 V; 1 mW; 2-2 MASH ADC; A-weighted audio band; CMOS process; local feedback loop; switched-RC integrators; Capacitors; Feedback; Low voltage; Multi-stage noise shaping; Power dissipation; Rail to rail amplifiers; Resistors; Sampling methods; Switches; Switching circuits;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Solid-State Circuits Conference, 2005. Digest of Technical Papers. ISSCC. 2005 IEEE International
  • Conference_Location
    San Francisco, CA
  • ISSN
    0193-6530
  • Print_ISBN
    0-7803-8904-2
  • Type

    conf

  • DOI
    10.1109/ISSCC.2005.1493921
  • Filename
    1493921