In this work we will document the design and the performances of a SiPM-based photodetector with a surface area of 100 cm2 conceived to operate as a replacement for PMTs. The signals from 94 SiPMs are summed up to produce an aggregated output that exhibits in liquid nitrogen a dark count rate (DCR) lower than 100 cps over the entire surface, a signal to noise ratio better than 13, and a timing resolution better than 5.5 ns. The module feeds about 360 mW at 5 V with a dynamic range in excess of 500 photo-electrons on a 100 Ω differential line. The unit is compatible with operations at room temperature, with a DCR increased by about 6 orders of magnitude.
@article{arxiv.2201.04615,
title = {Very large SiPM arrays with aggregated output},
author = {A. Razeto and V. Camillo and M. Carlini and L. Consiglio and A. Flammini and C. Galbiati and C. Ghiano and A. Gola and S. Horikawa and P. Kachru and I. Kochanek and K. Kondo and G. Korga and A. Mazzi and A. Moharana and G. Paternoster and D. Sablone and H. Wang},
journal= {arXiv preprint arXiv:2201.04615},
year = {2022}
}