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Very Low Noise Multiplexing with SQUIDs and SiGe Heterojunction Bipolar Transistors for Readout of Large Superconducting Bolometer Arrays

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Abstract

This paper presents an ultra low noise instrumentation based on a standard BiCMOS SiGe 0.35 μm ASIC operating at cryogenic temperatures. The main functions of the electronic circuit are the readout and the multiplexing of SQUIDs/TES. We report the cryogenic operation of the ASIC dedicated to the readout of a 2×4 pixel demonstrator array. We particularly emphasize on the development and the test phases of an ultra low noise ( \(0.2~\mbox{nV/}\sqrt{\mathrm{Hz}}\) ) cryogenic amplifier designed with two multiplexed inputs. The cryogenic SiGe amplifier coupled to a SQUID in a FLL operating at 4.2 K is also presented.

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Authors and Affiliations

  1. AstroParticule et Cosmologie, UMR7164-P7, 10 rue A. Domon et L. Duquet, 75205, Paris Cedex 13, France

    F. Voisin, E. Bréelle & M. Piat

  2. Laboratoire des Instruments et Systèmes d’Ile-de-France, UPMC-P6, 4 place Jussieu, 75252, Paris Cedex 5, France

    D. Prêle, G. Klisnick, G. Sou & M. Redon

Authors
  1. F. Voisin
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  2. E. Bréelle
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  3. M. Piat
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  4. D. Prêle
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  5. G. Klisnick
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  6. G. Sou
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  7. M. Redon
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Correspondence to F. Voisin.

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Voisin, F., Bréelle, E., Piat, M. et al. Very Low Noise Multiplexing with SQUIDs and SiGe Heterojunction Bipolar Transistors for Readout of Large Superconducting Bolometer Arrays. J Low Temp Phys 151, 1028–1033 (2008). https://doi.org/10.1007/s10909-008-9777-7

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  • DOI: https://doi.org/10.1007/s10909-008-9777-7

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