Discriminator ASIC for the SPD VFE of the LHCb calorimeter

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 um-BiCMOS technology of AMS. It consists on a charge discriminator with a dual path structure formed by...

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Detalles Bibliográficos
Autores principales: Aguiló, E, Ballabriga-Sune, Rafael, Benedico, E, Bota, S, Calvo, M, Cano, X, Comerma-Montells, A, Diéguez, A, Garra, J, Garrido, L, Gascón, D, González, C, Graciani, R, Graugès-Pous, E, Herms, A, Luengo, S, Riera, J, Rosselló, M, Vilasís, X, Xirgu, X
Lenguaje:eng
Publicado: 2004
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/735386
Descripción
Sumario: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 um-BiCMOS technology of AMS. It consists on a charge discriminator with a dual path structure formed by an integrator, a track and hold, a subtractor and a comparator. Each circuit has 8 full channels. The chip also includes a DAC and serial digital control interface to program the threshold of the discriminator. Design, simulation and test results for the 8 channel prototype are presented.

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