Enhanced radiation hardness and faster front ends for the beetle readout chip Autor van Bakel, N, van den Brand, J, Verkooijen, H, Bauer, C, Baumeister, D, Hofmann, N, Knopfle, K, Lochner, S, Schmelling, M, Sexauer, E, Feuerstack-Raible, M, Trunk, U, Harnew, N, Smale, N