• DocumentCode
    498012
  • Title

    A chopper and auto-zero offset-stabilized CMOS instrumentation amplifier

  • Author

    Witte, J.F. ; Huijsing, J.H. ; Makinwa, K.A.A.

  • Author_Institution
    Electronic Instrumentation Laboratory / DIMES, Delft University of Technology, Mekelweg 4, 2628CD, The Netherlands
  • fYear
    2009
  • fDate
    16-18 June 2009
  • Firstpage
    210
  • Lastpage
    211
  • Abstract
    This paper describes a CMOS instrumentation amplifier with a noise density of 42nV/νHz and 640kHz GBW at 325µA supply current. It achieves 2.5µV input offset voltage, 130dB CMRR, and 114dB PSRR by the combined use of chopping, auto-zeroing and a current-feedback topology.
  • Keywords
    Capacitors; Channel bank filters; Choppers; Clocks; Impedance; Instruments; Operational amplifiers; Topology; Transconductors; Voltage; auto-zero; chopping; dynamic offset compensation; instrumentation amplifier; low offset;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    VLSI Circuits, 2009 Symposium on
  • Conference_Location
    Kyoto, Japan
  • Print_ISBN
    978-1-4244-3307-0
  • Electronic_ISBN
    978-4-86348-001-8
  • Type

    conf

  • Filename
    5205373
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=498012