• DocumentCode
    1889882
  • Title

    A 21nV/√Hz chopper-stabilized multipath current-feedback instrumentation amplifier with 2µV offset

  • Author

    Qinwen Fan ; Huijsing, J.H. ; Makinwa, Kofi A. A.

  • Author_Institution
    Delft Univ. of Technol., Delft, Netherlands
  • fYear
    2010
  • fDate
    7-11 Feb. 2010
  • Firstpage
    80
  • Lastpage
    81
  • Abstract
    This paper describes a chopper-stabilized current-feedback instrumentation amplifier (CFIA) with a ripple-reduction loop (RRL). A smooth 1st-order response is obtained by embedding the RRL in a multipath structure to bury the notch caused by the RRL. The CFIA achieves 2 μV offset, 21 nV/√(VHz) with NEF of 9.6. The CFIA can also be configured as an opamp which achieves 2× reduction in NEF.
  • Keywords
    choppers (circuits); feedback amplifiers; operational amplifiers; chopper-stabilized multipath current-feedback instrumentation amplifier; multipath structure; opamp; ripple-reduction loop; Feedback; Filters; Frequency; Gain measurement; Impedance; Instruments; Joining processes; Stability; Transconductors; Transfer functions;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2010 IEEE International
  • Conference_Location
    San Francisco, CA
  • ISSN
    0193-6530
  • Print_ISBN
    978-1-4244-6033-5
  • Type

    conf

  • DOI
    10.1109/ISSCC.2010.5434041
  • Filename
    5434041
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1889882