Very Low Noise Multiplexing with SQUID and SiGe HBTs For Readout of Large Superconducting Bolometer Arrays - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Journal of Low Temperature Physics Année : 2008

Very Low Noise Multiplexing with SQUID and SiGe HBTs For Readout of Large Superconducting Bolometer Arrays

Résumé

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 nV/sqrt 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

Dates et versions

hal-00568093 , version 1 (22-02-2011)

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F. Voisin, E. Bréelle, M. Piat, D. Prêle, Geoffroy Klisnick, et al.. Very Low Noise Multiplexing with SQUID and SiGe HBTs For Readout of Large Superconducting Bolometer Arrays. Journal of Low Temperature Physics, 2008, 151 (3-4), pp.1028-1033. ⟨10.1007/s10909-008-9777-7⟩. ⟨hal-00568093⟩
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