• DocumentCode
    2396726
  • Title

    A 14-bit MOSFET-only second order delta-sigma modulator for capacitive sensor interfaces

  • Author

    Cama, J. Ma Górnez ; Montané, E. ; Bota, S.A. ; Samitier, J.

  • Author_Institution
    Dept. d´´Electron., Barcelona Univ., Spain
  • Volume
    1
  • fYear
    1999
  • fDate
    1999
  • Firstpage
    31
  • Abstract
    A 14-bit MOSFET-only 2n order Δ-ΣΣ modulator for capacitive sensors interfaces has been implemented using a 0.7 um CMOS process. The circuit is based in the substitution of linear capacitors by MOS capacitors in a Switch capacitor architecture. The circuit present low fabrication cost, small area, and high matching. The proposal was tested comparing two different Δ-Σ modulators, one with linear capacitors and the MOS-only version. Similar results were obtained for both modulators
  • Keywords
    CMOS integrated circuits; MOS capacitors; MOSFET circuits; capacitive sensors; delta-sigma modulation; microsensors; switched capacitor networks; 0.7 micron; 14 bit; CMOS process; MOS capacitor; MOSFET; capacitive sensor interface; delta-sigma modulator; microsystems technology; switched capacitor circuit; CMOS process; Capacitive sensors; Costs; Delta modulation; Fabrication; MOS capacitors; Proposals; Switched capacitor circuits; Switches; Switching circuits;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Circuits and Systems, 1999. 42nd Midwest Symposium on
  • Conference_Location
    Las Cruces, NM
  • Print_ISBN
    0-7803-5491-5
  • Type

    conf

  • DOI
    10.1109/MWSCAS.1999.867201
  • Filename
    867201
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2396726