• DocumentCode
    3439316
  • Title

    A BiCMOS current-feedback operational amplifier with a 60 dB constant bandwidth range

  • Author

    Koli, Kimmo ; Halonen, Kari

  • Author_Institution
    Electron. Circuit Design Lab., Helsinki Univ. of Technol., Espoo, Finland
  • Volume
    5
  • fYear
    1994
  • fDate
    30 May-2 Jun 1994
  • Firstpage
    525
  • Abstract
    The designed BiCMOS current-feedback operational amplifier utilizes a novel circuit topology which enables constant 1 MHz bandwidth closed loop voltage gains up to 60 dB. The offset current of the current-feedback amplifier is canceled with an active OTA-C feedback loop. The amplifier is fabricated with a 1.2 micron BiCMOS-process (NPN fT 7 GHz)
  • Keywords
    BiCMOS analogue integrated circuits; feedback amplifiers; operational amplifiers; wideband amplifiers; 1 MHz; 1.2 micron; 60 dB; BiCMOS current-feedback opamp; active OTA-C feedback loop; circuit topology; constant bandwidth range; offset current cancellation; operational amplifier; Bandwidth; BiCMOS integrated circuits; Capacitance; Circuit topology; Equivalent circuits; Frequency; Operational amplifiers; Output feedback; Transconductance; Voltage;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Circuits and Systems, 1994. ISCAS '94., 1994 IEEE International Symposium on
  • Conference_Location
    London
  • Print_ISBN
    0-7803-1915-X
  • Type

    conf

  • DOI
    10.1109/ISCAS.1994.409427
  • Filename
    409427
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3439316