A BiCMOS synchronous pulse discriminator for the LHCb calorimeter system

S Bota, R Graciani, A Diéguez & D Gascón
A monolithic prototype for the analogue readout of the Scintillator Pad Detector (SPD) of the LHCb calorimeter is presented. A low power version that works at 3.3 V has been designed using the 0.8 mu m Bi CMOS technology of AMS. It consists of a charge discriminator with a dual path structure formed by an integrator, a pile-up correction, a subtractor and a comparator. The chip also includes a DAC and serial digital control interface...
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