/ Instrumentation


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


Adolfsson, J. (Lund U.) ; Pabon, A.Ayala (Sao Paulo U.) ; Bregant, M. (Sao Paulo U.) ; Britton, C. (Oak Ridge) ; Brulin, G. (Orsay, IPN) ; Carvalho, D. (Sao Paulo U.) ; Chambert, V. (Orsay, IPN) ; Chinellato, D. (Campinas State U.) ; Espagnon, B. (Orsay, IPN) ; Herrera, H.D.Hernandez (Sao Paulo U.) ; Ljubicic, T. (Brookhaven) ; Mahmood, S.M. (Oslo U.) ; Mjörnmark, U. (Lund U.) ; Moraes, D. (Sao Paulo, Inst. Tech. Aeronautics) ; Munhoz, M.G. (Sao Paulo U.) ; Noël, G. (Orsay, IPN) ; Oskarsson, A. (Lund U.) ; Osterman, L. (Lund U.) ; Pilyar, A. (Dubna, JINR) ; Read, K. (Oak Ridge) ; Ruette, A. (Campinas State U.) ; Russo, P. (Orsay, IPN) ; Sanches, B.C.S. (Sao Paulo U.) ; Severo, L. (Sao Paulo U.) ; Silvermyr, D. (Lund U.) ; Suire, C. (Orsay, IPN) ; Tambave, G.J. (Bergen U.) ; Tun-Lanoë, K.M.M. (Orsay, IPN) ; Noije, W.van (Sao Paulo U.) ; Velure, A. (Bergen U.) ; Vereschagin, S. (Dubna, JINR) ; Wanlin, E. (Orsay, IPN) ; Weber, T.O. (Sao Paulo U., Guaratingueta) ; Zaporozhets, S. (Dubna, JINR)

Published in: JINST
Year: 2017
Vol.: 12    Num./Issue: 04
Page No: C04008
Year: 2017-04-05 published

Abstract: 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 1.25 V 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.

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DOI: 10.1088/1748-0221/12/04/C04008
 Record created 2017-05-02, last modified 2017-05-02



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