Reconfigurable ASIC for a low level trigger system in Cherenkov Telescope Cameras

A versatile and reconfigurable ASIC is presented, which implements two different concepts of low level trigger (L0) for Cherenkov telescopes: the Majority trigger (sum of discriminated inputs) and the Sum trigger concept (analogue clipped sum of inputs). Up to 7 input signals can be processed follow...

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Detalhes bibliográficos
Autores: Gascón Fora, David, Barrio, Juan Abel, Blanch, O., Boix, J., Delagnes, E., Delgado, C., Freixas, L., Guilloux, F., Coto, R. L., Griffiths, S., Martinez, G., Martinez, O., Sanuy Charles, Andreu, Tejedor, L. A.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/148635
Acesso em linha:https://hdl.handle.net/2445/148635
Access Level:acceso abierto
Palavra-chave:Circuits electrònics
Raigs gamma
Instruments astronòmics
Electronic circuits
Gamma rays
Astronomical instruments
Descrição
Resumo:A versatile and reconfigurable ASIC is presented, which implements two different concepts of low level trigger (L0) for Cherenkov telescopes: the Majority trigger (sum of discriminated inputs) and the Sum trigger concept (analogue clipped sum of inputs). Up to 7 input signals can be processed following one or both of the previous trigger concepts. Each differential pair output of the discriminator is also available as a LVDS output. Differential circuitry using local feedback allows the ASIC to achieve high speed (500 MHz) while maintaining good linearity in a 1 Vpp range. Experimental results are presented. A number of prototype camera designs of the Cherenkov Telescope Array (CTA) project will use this ASIC.

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