• DocumentCode
    1570958
  • Title

    A 10-bit 20MHz 38mW 950MHz CT ΣΔ ADC with a 5-bit noise-shaping VCO-based quantizer and DEM circuit in 0.13u cmos

  • Author

    Straayer, Matthew Z. ; Perrott, Michael H.

  • Author_Institution
    Massachusetts Inst. of Technol., Cambridge
  • fYear
    2007
  • Firstpage
    246
  • Lastpage
    247
  • Abstract
    A combined 5-bit, 1st order noise-shaped quantizer and DEM circuit running at 950MHz based on a multi-phase VCO is presented. This quantizer structure is the key element in a 3rd order noise shaped ADC with 2nd order loop dynamics and a single opamp. Measured performance is 60dB SNR at 20MHz bandwidth in 0.13u CMOS while consuming 32mA from a 1.2V supply.
  • Keywords
    CMOS integrated circuits; UHF integrated circuits; UHF oscillators; sigma-delta modulation; voltage-controlled oscillators; CMOS; CT SigmaDelta ADC; DEM circuit; VCO-based quantizer; bandwidth 20 MHz; frequency 950 MHz; multiphase VCO; noise figure 60 dB; noise-shaped quantizer; power 38 mW; size 0.13 mum; voltage 1.2 V; Bioluminescence; Biosensors; CMOS image sensors; CMOS technology; Circuits; Image converters; Noise shaping; Quantization; Sensor arrays; Signal resolution;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    VLSI Circuits, 2007 IEEE Symposium on
  • Conference_Location
    Kyoto
  • Print_ISBN
    978-4-900784-04-8
  • Electronic_ISBN
    978-4-900784-05-5
  • Type

    conf

  • DOI
    10.1109/VLSIC.2007.4342737
  • Filename
    4342737
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1570958