New models of PADI, an ultrafast preamplifier-discriminator ASIC for time-of-flight measurements - Ciobanu, Mircea; Marghitu, Octav; Constantinescu, Vlad; Herrmann, Norbert; Andersson, Herman; Wieser, M.; Flemming, H.; Deppe, H.; Löchner, S.; Frühauf, J.; Deppner, Ingo Martin; Loizeau, Pierre-Alain (IEEE transactions on nuclear science, 2021)