• DocumentCode
    933063
  • Title

    Design and characterisation of a very low current to frequency convertor

  • Author

    El-Hennawy, A. ; Saleh, N. ; Borel, D.

  • Author_Institution
    Ain Shams University, Department of Electronic & Computer Engineering, Faculty of Engineering, Cairo, Egypt
  • Volume
    132
  • Issue
    5
  • fYear
    1985
  • fDate
    10/1/1985 12:00:00 AM
  • Firstpage
    184
  • Lastpage
    188
  • Abstract
    A current to frequency convertor (CFC), fully integrated in aluminum gate p-channel enhancement/depletion MOS technology, is proposed. It is designed for measuring low level currents (10¿13 ¿10¿8 A). A feedback loop is used to obtain good linearity (better than 5%). Experimentally, the CFC works in the range 5 × 10¿13 ¿5 × 10¿8 A. Some nonlinearity problems are observed and explained in the paper.
  • Keywords
    convertors; electric current measurement; feedback; field effect integrated circuits; linear integrated circuits; switched capacitor networks; Al gate; MOS technology; PMOS implementation; current/frequency convertor; differential amplifier; feedback loop; low level current measurement; nonlinearity problems; p-channel enhancement/depletion; pA level; switched capacitor technique;
  • fLanguage
    English
  • Journal_Title
    Electronic Circuits and Systems, IEE Proceedings G
  • Publisher
    iet
  • ISSN
    0143-7089
  • Type

    jour

  • DOI
    10.1049/ip-g-1:19850038
  • Filename
    4646553
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=933063