FILTERS - A 128 CHANNELS VLSI MIXED FRONT-END READOUT ELECTRONIC DEVELOPMENT FOR MICROSTRIP DETECTORS

We present a VLSI digital-analog readout electronic chain for silicon microstrip detectors. The characteristics of this circuit have been op timized for the high resolution tracker of the CERN CMS experiment. Th is chip consists of 128 channels at 50 mu m pitch. Each channel is com posed by a charge amplifier, a CR-RC shaper, an analog memory, an anal og processor, an output FIFO read out serially by a multiplexer. This chip has been processed in the radiation hard technology DMILL. This p aper describes the architecture of the circuit and presents test resul ts of the 128 channel full chain chip. (C) 1998 Elsevier Science B.V. All rights reserved.