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Proceedings Paper

The SIRIUS mixed analog-digital ASIC developed for the LOFT LAD and WFM instruments
Author(s): A. Cros; D. Rambaud; E. Moutaye; L. Ravera; D. Barret; P. Caïs; R. Clédassou; P. Bodin; J. Y. Seyler; A. Bonzo; M. Feroci; C. Labanti; Y. Evangelista; Y. Favre
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Paper Abstract

We report on the development and characterization of the low-noise, low power, mixed analog-digital SIRIUS ASICs for both the LAD and WFM X-ray instruments of LOFT. The ASICs we developed are reading out large area silicon drift detectors (SDD). Stringent requirements in terms of noise (ENC of 17 e- to achieve an energy resolution on the LAD of 200 eV FWHM at 6 keV) and power consumption (650 μW per channel) were basis for the ASICs design. These SIRIUS ASICs are developed to match SDD detectors characteristics: 16 channels ASICs adapted for the LAD (970 microns pitch) and 64 channels for the WFM (145 microns pitch) will be fabricated. The ASICs were developed with the 180nm mixed technology of TSMC.

Paper Details

Date Published: 29 July 2014
PDF: 14 pages
Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 914463 (29 July 2014); doi: 10.1117/12.2056712
Show Author Affiliations
A. Cros, Observatoire Midi-Pyrénées, IRAP, CNRS, Univ. de Toulouse (France)
D. Rambaud, Observatoire Midi-Pyrénées, IRAP, CNRS, Univ. de Toulouse (France)
E. Moutaye, Observatoire Midi-Pyrénées, IRAP, CNRS, Univ. de Toulouse (France)
L. Ravera, Observatoire Midi-Pyrénées, IRAP, CNRS, Univ. de Toulouse (France)
D. Barret, Observatoire Midi-Pyrénées, IRAP, CNRS, Univ. de Toulouse (France)
P. Caïs, Lab. d'Astrophysique de Bordeaux, CNRS, Univ. de Bordeaux (France)
Lab. Automatique de Besançon, CNRS (France)
R. Clédassou, Ctr. National d'Études Spatiales (France)
P. Bodin, Ctr. National d'Études Spatiales (France)
J. Y. Seyler, Ctr. National d'Études Spatiales (France)
A. Bonzo, Dolphin Integration (France)
M. Feroci, INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
INFN (Italy)
C. Labanti, INAF - IASF Bologna (Italy)
Y. Evangelista, INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
INFN (Italy)
Y. Favre, Univ. de Genève (Switzerland)


Published in SPIE Proceedings Vol. 9144:
Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Jan-Willem A. den Herder; Mark Bautz, Editor(s)

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