SPACIROC2: A Front-End Readout ASIC for the JEM-EUSO observatory
Résumé
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.