• DocumentCode
    516547
  • Title

    Offset Cancelling Circuit

  • Author

    Wiegerink, R.J. ; Seevinck, E. ; de Jager, W.

  • Author_Institution
    Faculty of Electrical Engineering, Twente University, P.O. Box 217, 7500 AE Enschede, The Netherlands.
  • fYear
    1988
  • fDate
    21-23 Sept. 1988
  • Firstpage
    215
  • Lastpage
    218
  • Abstract
    An offset cancelling circuit to reduce the offset voltage at an integrated audio amplifier output is described. This offset voltage is detected using a low pass filter with a very large time constant. Only one small on-chip capacitor is needed. A value of 50 pF yields a - 3dB bandwidth of 5 Hz. The circuit was realized with a bipolar cell-based semicustom array.
  • Keywords
    Bandwidth; Capacitors; Frequency; Integrated circuit yield; Low pass filters; Mirrors; Resistors; Temperature distribution; Transconductance; Voltage;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Solid-State Circuits Conference, 1988. ESSCIRC '88. Fourteenth European
  • Conference_Location
    Manchester, UK
  • Type

    conf

  • Filename
    5468336
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=516547