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Proceedings Paper

Cryogenic SiGe ASICs for readout and multiplexing of superconducting detector arrays
Author(s): F. Voisin; D. Prêle; E. Bréelle; M. Piat; G. Sou; G. Klisnick; M. Redon
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Paper Abstract

This paper presents an ultra low noise instrumentation based on cryogenic electronic integrated circuits (ASICs : Application Specific Integrated Circuits). We have designed successively two ASICs in standard BiCMOS SiGe 0.35 μm technology that have proved to be operating at cryogenic temperatures. The main functions of these circuits are the readout and the multiplexing of SQUID/TES arrays. We report the cryogenic operation of a first ASIC version 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/√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. We finally report on the development of a second version of this circuit to readout a 3×8 detectors array with improved noise performances and upgraded functionalities.

Paper Details

Date Published: 18 July 2008
PDF: 8 pages
Proc. SPIE 7020, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV, 70202S (18 July 2008); doi: 10.1117/12.790571
Show Author Affiliations
F. Voisin, APC, Univ. Denis Diderot Paris 7 (France)
D. Prêle, APC, Univ. Denis Diderot Paris 7 (France)
E. Bréelle, APC, Univ. Denis Diderot Paris 7 (France)
M. Piat, APC, Univ. Denis Diderot Paris 7 (France)
G. Sou, L2E, Univ. Pierre et Marie Curie Paris 6 (France)
G. Klisnick, L2E, Univ. Pierre et Marie Curie Paris 6 (France)
M. Redon, L2E, Univ. Pierre et Marie Curie Paris 6 (France)


Published in SPIE Proceedings Vol. 7020:
Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV
William D. Duncan; Wayne S. Holland; Stafford Withington; Jonas Zmuidzinas, Editor(s)

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