Conceptual design of a versatile radiation tolerant integrated signal conditioning circuit for resistive sensors

P. Leroux, J. Sterckx, M. Van Uffelen, C. Damiani

    Research outputpeer-review

    Abstract

    This paper presents the design of a radiation tolerant configurable discrete time CMOS signal conditioning circuit for use with resistive sensors like strain gauge pressure sensors. The circuit is intended to be used for remote handling in harsh environments in the International Thermonuclear Experimental fusion Reactor (ITER). The design features a 5 V differential preamplifier using a Correlated Double Sampling (CDS) architecture at a sample rate of 20 kHz and a 24 V discrete time post amplifier. The gain is digitally controllable between 27 and 400 in the preamplifier and between 1 and 8 in the post amplifier. The nominal input referred noise voltage is only 8.5 μV while consuming only 1 mW. The circuit has a simulated radiation tolerance of more than 1 MGy.

    Original languageEnglish
    Title of host publicationANIMMA 2011 - Proceedings
    Subtitle of host publication2nd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications
    DOIs
    StatePublished - 2011
    Event2011 - ANIMMA - Advancements in Nuclear Instrumentation Measurement Methods and their Applications: International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications - Ghent
    Duration: 6 Jun 20119 Jun 2011

    Publication series

    NameANIMMA 2011 - Proceedings: 2nd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications

    Conference

    Conference2011 - ANIMMA - Advancements in Nuclear Instrumentation Measurement Methods and their Applications
    Country/TerritoryBelgium
    CityGhent
    Period2011-06-062011-06-09

    ASJC Scopus subject areas

    • Nuclear Energy and Engineering

    Cite this