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Communication Dans Un Congrès AIP Conference Proceedings Année : 2009

SiGe Integrated Circuit / SQUID Hybrid Cryogenic Multiplexing for Superconducting Bolometer Array

D. Prêle
  • Fonction : Auteur
  • PersonId : 921365
E. Bréelle
  • Fonction : Auteur
  • PersonId : 1380717
M. Piat
  • Fonction : Auteur

Résumé

The development of large superconducting bolometer (Transition Edge Sensor: TES) arrays requires ultra low noise amplification and multiplexing electronics. The use of a first transducer stage such as a SQUID (Superconducting QUantum Interference Device) allows ultimate performance in terms of noise. However, the linearization of the SQUID characteristic requires low noise amplification. Furthermore, to realize a time domain multiplexer with SQUIDs, switched biasing is also needed. We have designed an Integrated Circuit (IC) in standard BiCMOS SiGe technology for the readout and the control of a SQUID multiplexer. It includes a low noise amplifier with multiplexed inputs, switched current sources for SQUIDs, and digital circuit for the addressing with only one room temperature clock signal. We have successfully tested this integrated circuit down to 2 K. To validate the operation of a SQUID multiplexer controlled by this SiGe cryogenic IC, we have developed a 2×2 SQUID hybrid demonstrator. It consists of four commercial SQUIDs connected to a SiGe IC.
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Dates et versions

hal-00729052 , version 1 (07-09-2012)

Identifiants

Citer

D. Prêle, F. Voisin, R. Oger, C. Chapron, E. Bréelle, et al.. SiGe Integrated Circuit / SQUID Hybrid Cryogenic Multiplexing for Superconducting Bolometer Array. THE THIRTEENTH INTERNATIONAL WORKSHOP ON LOW TEMPERATURE DETECTORS-LTD13, Jul 2009, Stanford (California), United States. pp.534-537, ⟨10.1063/1.3292398⟩. ⟨hal-00729052⟩
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