Abstract : The SPACIROC ASIC family is designed for the JEM-EUSO observatory onboard of the International Space Station (ISS). This rad-hard ASIC is proposed for reading out the 64-channel Multi-Anode Photomultipliers which will equip the detection surface. Two main features of this ASIC are the photon counting mode for each input and the charge-to-time conversion for the multiplexed channels. SPACIROC1 was submitted in 2010 and showed global good behavior. A second version of SPACIROC has been designed to fix bugs and improve global consumption. Design and the test results of SPACIROC2 are presented in this paper.
S. Ahmad, P. Barrillon, S. Blin, S. Dagoret Campagne, C. De La Taille, et al.. SPACIROC2: A Front-End Readout ASIC for the JEM-EUSO observatory. Topical Workshop on Electronics for Particle physics (TWEPP 2012), Sep 2012, Oxford, United Kingdom. IOP Publishing, 8, pp.C01006, 2013, <10.1088/1748-0221/8/01/C01006>. <in2p3-00747600>