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Proceedings Paper

VERITAS 2.0 a multi-channel readout ASIC suitable for the DEPFET arrays of the WFI for Athena
Author(s): Matteo Porro; Davide Bianchi; Giulio De Vita; Sven Herrmann; Andreas Wassatsch; Alexander Bähr; Bettina Bergbauer; Norbert Meidinger; Sabine Ott; Johannes Treis
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Paper Abstract

VERITAS 2.0 is a multi-channel readout ASIC for pnCCDs and DEPFET arrays. The main chip application is the readout of the DEPFET pixel arrays of the Wide Field Imager for the Athena mission. Every readout channel implements a trapezoidal weighting function and it is based on a fully differential architecture. VERITAS 2.0 is the first ASIC able to readout the DEPFETs both in source follower mode and in drain current mode. The drain readout should make it possible to achieve a processing time of about 2-3 μs/line with an electronics noise ≤ 5 electrons r.m.s.. The main concept and first measurements are presented.

Paper Details

Date Published: 25 July 2014
PDF: 8 pages
Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91445N (25 July 2014); doi: 10.1117/12.2056097
Show Author Affiliations
Matteo Porro, Max-Planck-Institut für extraterrestrische Physik (Germany)
Davide Bianchi, Politecnico di Milano (Italy)
Giulio De Vita, Max-Planck-Institut für extraterrestrische Physik (Germany)
Sven Herrmann, SLAC National Accelerator Lab. (United States)
Andreas Wassatsch, Halbleiterlabor der Max-Planck-Gesellschaft (Germany)
Alexander Bähr, Max-Planck-Institut für extraterrestrische Physik (Germany)
Bettina Bergbauer, Max-Planck-Institut für extraterrestrische Physik (Germany)
Norbert Meidinger, Max-Planck-Institut für extraterrestrische Physik (Germany)
Sabine Ott, Max-Planck-Institut für extraterrestrische Physik (Germany)
Johannes Treis, Halbleiterlabor der Max-Planck-Gesellschaft (Germany)


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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