• DocumentCode
    516797
  • Title

    A Full 12-Bit Switched-Current ΔΣ Modulator with Self-Calibration

  • Author

    Leme, C.Azeredo ; Silva, José B. ; Franca, J.E.

  • Author_Institution
    Instituto Superior Técnico, Centre for Microsystems, Av. Rovisco Pais, 1096 Lisboa Codex, PORTUGAL. Phone: +351-1-8418376, Fax: +351-1-8417675, email: carlos@ecsm4.ist.utl.pt
  • fYear
    1996
  • fDate
    17-19 Sept. 1996
  • Firstpage
    336
  • Lastpage
    339
  • Abstract
    In this paper we present a differential switched-current delta-sigma modulator achieving full 12 bit resolution. A differential first generation based S2I cell is adopted for its superior linearity, while the use of an efficient self-calibrating technique minimizes integrator loss due to its poor transistor matching. Measurement results on a first-order prototype show a 74 dB signal-to-distortion ratio. The complete circuit occupies 0.25 mm2 of silicon area in a 0.8 μm DPSM CMOS process.
  • Keywords
    Calibration; Circuits; Clocks; Degradation; Delta modulation; Dynamic range; Linearity; Logic arrays; Modulation coding; Voltage;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Solid-State Circuits Conference, 1996. ESSCIRC '96. Proceedings of the 22nd European
  • Conference_Location
    Neuchatel, Switzerland
  • Print_ISBN
    2-86332-197-8
  • Type

    conf

  • Filename
    5468660
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=516797