Very-low-noise multiplexing with SQUIDs and SiGe HBTs for readout of large superconducting bolometer arrays - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Year : 2007

Very-low-noise multiplexing with SQUIDs and SiGe HBTs for readout of large superconducting bolometer arrays

Abstract

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.

Dates and versions

in2p3-00189845 , version 1 (22-11-2007)

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Cite

D. Prêle, G. Klisnick, G. Sou, M. Redon, E. Bréelle, et al.. Very-low-noise multiplexing with SQUIDs and SiGe HBTs for readout of large superconducting bolometer arrays. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2007, 578, pp.439-441. ⟨10.1016/J.NIMA.2007.05.311⟩. ⟨in2p3-00189845⟩
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