• DocumentCode
    1008777
  • Title

    Ultra-low-noise, high-impedance preamp for cryogenic detectors

  • Author

    Brown, E.R.

  • Author_Institution
    California Institute of Technology, Pasadena, USA
  • Volume
    21
  • Issue
    10
  • fYear
    1985
  • Firstpage
    417
  • Lastpage
    418
  • Abstract
    A preamplifier design is presented which is based on a common-drain JFET input. The midband noise performance is En = 0.42 nV/Hz¿, In = 2.8 fA/Hz¿. The circuit has considerably less input capacitance than comparably noisy common-source amplifiers. It is particularly useful for preamplification of 0.1 to 10 MHz signals from liquid-helium-cooled radiation detectors.
  • Keywords
    high-frequency amplifiers; infrared detectors; preamplifiers; radiofrequency amplifiers; wideband amplifiers; 0.1 to 10 MHz signals; HF operation; IR detectors; RF signals; common-drain JFET input; cryogenic detectors; high-impedance preamp; liquid He cooling; preamplifier design; radiation detector; ultralow noise operation;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19850296
  • Filename
    4251198
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1008777