159 articles – 2004 Notices  [english version]
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Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 578 (2007) 439-441
Very-low-noise multiplexing with SQUIDs and SiGe HBTs for readout of large superconducting bolometer arrays
D. Prêle1, G. Klisnick1, G. Sou1, M. Redon1, E. Bréelle2, F. Voisin2, M. Piat2

We present 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 arrays. We report the cryogenic operation of the ASIC dedicated to the readout of a 2×4 pixel demonstrator array. We particularly emphasise on the development, and the test phases of an ultra-low-noise (0.2 nV/√Hz) cryogenic amplifier designed with two multiplexed input. The cryogenic SiGe amplifier coupled to a SQUID in a FLL operating at 4.2 K is also presented.
1 :  LISIF - Laboratoire des Instruments et Systèmes d'Ile de France
2 :  APC - UMR 7164 - AstroParticule et Cosmologie
APC - Cosmologie et Gravitation
Physique/Astrophysique/Cosmologie et astrophysique extra-galactique

Planète et Univers/Astrophysique/Cosmologie et astrophysique extra-galactique

Planète et Univers/Astrophysique

Sciences de l'ingénieur/Electronique
Cryo-electronic – SiGe BiCMOS technology – SQUID array – Time multiplexing