Analog readout modules for the ZEUS microvertex detector

Analog readout modules have been developed for a silicon microvertex detector of the electron–proton collision experiment ZEUS. Analog signals kept in the front end are read out and digitized by ADCs and processed afterwards to reduce the data volume while keeping the signal information. We have developed prototype modules with 10-bit 10 MHz ADCs and digital processors built in Field Programmable Gate Arrays. Their performance was investigated.