Design of a readout chip for LHCB by van Bakel, N, van den Brand, J, Verkooijen, H, Baumeister, D, Hofmann, W, Knopfle, K, Lochner, S, Schmelling, M, Sexauer, E, Feuerstack-Raible, M, Schweda, J, Harnew, N, Smale, N, CERN, CERN