Low-noise readout of TES detectors with baseband feedback frequency domain multiplexing

Roland den Hartog (Corresponding Author), M.D. Audley, J. Beyer, D. Boersma, M. Bruijn, L. Gottardi, H. Hoevers, R. Hou, G. Keizer, P. Khosropanah, Mikko Kiviranta, P. de Korte, J. van Der Kuur, B.-J. van Leeuwen, A.C.T. Nieuwenhuizen, P. van Winden

    Research output: Contribution to journalArticleScientificpeer-review

    25 Citations (Scopus)


    SRON is developing an electronic read-out system for an array of transition edge sensors (TES) based on the techniques of frequency domain multiplexing (FDM) and base-band feedback (BBFB). The astronomical applications of our system are the read-out of soft X-ray micro-calorimeters in a potential instrument on the European X-ray mission-under-study Athena and far-IR bolometers for the SAFARI instrument on the Japanese mission SPICA. In this paper we demonstrate the simultaneous locking of up to 51 BBFB loops. While locked, the in-band read-out noise of the loops is shown to reach the 10~pA/√Hz level required for these missions.
    Original languageEnglish
    Pages (from-to)652-657
    JournalJournal of Low Temperature Physics
    Issue number5-6
    Publication statusPublished - 2012
    MoE publication typeA1 Journal article-refereed


    • Bolometers
    • frequency domain multiplexing
    • microcalorimeters
    • multiplexed read-out
    • transition edge sensors


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