SAMPA Chip: the New 32 Channels ASIC for the ALICE TPC and MCH Upgrades

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Adolfsson, J. ; Ayala Pabon, A. ; Bregant, M. ; Britton, C. ; Brulin, G. ; Carvalho, D. ; Chambert, V. ; Chinellato, D. ; Espagnon, B. ; Hernandez Herrera, H. D. ; Ljubicic, T. ; Mahmood, S. M. ; Mjornmark, U. ; Moraes, D. ; Munhoz, M. G. ; Noel, G. ; Oskarsson, A. ; Osterman, L. ; Pilyar, A. ; Read, K. ; Ruette, A. ; Russo, P. ; Sanches, B. C. S. ; Severo, L. ; Silvermyr, D. ; Suire, C. ; Tambave, G. J. ; Tun-Lanoe, K. M. M. ; van Noije, W. ; Velure, A. ; Vereschagin, S. ; Wanlin, E. ; Weber, T. O. ; Zaporozhets, S.

• Tipo de documento: Artigo Científico
• Fonte: Journal of Instrumentation; v. 12, APR 2017.
• Citações Web of Science: 4

Resumo

This paper presents the test results of the second prototype of SAMPA, the ASIC designed for the upgrade of read-out front end electronics of the ALICE Time Projection Chamber (TPC) and Muon Chamber (MCH). SAMPA is made in a 130 nm CMOS technology with 1.25V nominal voltage supply and provides 32 channels, with selectable input polarity, and three possible combinations of shaping time and sensitivity. Each channel consists of a Charge Sensitive Amplifier, a semi-Gaussian shaper and a 10-bit ADC; a Digital Signal Processor provides digital filtering and compression capability. In the second prototype run both full chip and single test blocks were fabricated, allowing block characterization and full system behaviour studies. Experimental results are here presented showing agreement with requirements for both the blocks and the full chip. (AU)

• Processo FAPESP: 12/04583-8 - Física nuclear de altas energias no RHIC e LHC
• Beneficiário: Marcelo Gameiro Munhoz
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 14/12664-3 - Desenvolvimento de instrumentação científica para o experimento ALICE do LHC-CERN
• Beneficiário: Wilhelmus Adrianus Maria van Noije
• Modalidade de apoio: Auxílio à Pesquisa - Projetos Especiais
• Processo FAPESP: 13/06885-4 - Projeto de um ASIC de aquisição e processamento digital de sinais para o time projection chamber do experimento ALICE
• Beneficiário: Wilhelmus Adrianus Maria van Noije
• Modalidade de apoio: Auxílio à Pesquisa - Regular