SAMPA chip: a new ASIC for the ALICE TPC and MCH upgrades

This paper presents the SAMPA, an ASIC designed for the upgrade of read-out front end electronics of the ALICE Time Projection Chamber (TPC) and Muon Chambers (MCH). SAMPA is made in a 130 nm CMOS technology with 1.25 V nominal voltage supply and includes 32 channels, with selectable input polarity,...

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Detalles Bibliográficos
Autores principales: Barboza, S H I, Bregant, M, Chambert, V, Espagnon, B, Herrera, H D Hernandez, Mahmood, S M, Moraes, D, Munhoz, M G, Noël, G, Pilyar, A, Russo, P, Sanches, B C S, Tambave, G J, Tun-Lanoë, K M M, Noije, W van, Velure, A, Vereschagin, S, Weber, T O, Zaporozhets, S
Lenguaje:eng
Publicado: 2016
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1088/1748-0221/11/02/C02088
http://cds.cern.ch/record/2265877
Descripción
Sumario:This paper presents the SAMPA, an ASIC designed for the upgrade of read-out front end electronics of the ALICE Time Projection Chamber (TPC) and Muon Chambers (MCH). SAMPA is made in a 130 nm CMOS technology with 1.25 V nominal voltage supply and includes 32 channels, with selectable input polarity, and five possible combinations of shaping time and sensitivity. Each channel comprises a Charge Sensitive Amplifier, a semi-Gaussian shaper and a 10-bit ADC, followed by a Digital Signal Processor. A prototype in a multi project run was submitted to evaluate the performance of each of these blocks. The experimental results of the tests on these building blocks are presented, showing a substantial agreement with requirements.

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