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A serial powering scheme for the ATLAS pixel detector at sLHC
/ Gonella, L (Bonn U.) ; Arutinov, D (Bonn U.) ; Barbero, M (Bonn U.) ; Eyring, A (Bonn U.) ; Hügging, F (Bonn U.) ; Karagounis, M (Bonn U.) ; Krüger , H (Bonn U.) ; Wermes, N (Bonn U.)
Powering concepts, such as serial powering and DC-DC conversion, are in development for the silicon trackers at sLHC to achieve an efficient power distribution with a minimum volume of cables. This paper will describe the serial powering scheme developed for the upgraded ATLAS pixel detector, with focus on the scheme architecture and on the main components involved: the Shunt-LDO regulator and the protection scheme [...]
2010
- Published in : JINST 5 (2010) C12002
IOP Open Access article: PDF;
In : Topical Workshop on Electronics for Particle Physics 2010, Aachen, Germany, 20 - 24 Sep 2010, pp.C12002
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3.
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Characterization and verification of the Shunt-LDO regulator and its protection circuits for serial powering of the ATLAS and CMS pixel detectors
/ Kampkötter, Jeremias (Applied Sci. U., Dortmund) ; Karagounis, Michael (Applied Sci. U., Dortmund) ; Koukola, Dominik (CERN) ; Loddo, Flavio (INFN, Bari) ; Orfanelli, Stella (CERN) ; Luengo, Alvaro Pradas (EADS CASA, Madrid) ; Traversi, Gianluca (Bergamo U.) ; Kokozinski, Rainer (Duisburg-Essen U.)
The Shunt-LDO regulator has been integrated in the ATLAS and the CMS pixel detector RD53 front-end chip to implement the serial powering scheme which both experiments have chosen as the baseline option for the HL-LHC upgrade. The performance of the integrated regulators has been characterized and specific design challenges have been identified which are related to layout parasitics and shallow trench isolation (STI) stress effects. [...]
2022 - 6 p.
- Published in : J. Phys. : Conf. Ser. 2374 (2022) 012071
Fulltext: PDF;
In : International Conference on Technology and Instrumentation in Particle Physics (TIPP 2021), Online, Canada, 24 - 29 May 2021, pp.012071
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Stabilization and Protection of the Shunt-LDO regulator for the HL-LHC pixel detector upgrades
/ Kampkoetter, Jeremias (Applied Sci. U., Dortmund) ; Karagounis, Michael (Applied Sci. U., Dortmund) ; Stiller, Andreas (Applied Sci. U., Dortmund) ; Traversi, Gianluca (Bergamo U.) ; Luengo, Alvaro Pradas (Zaragoza, ITA) ; Koukola, Dominik (CERN) ; Orfanelli, Stella (CERN) ; Hinterkeuser, Florian (Bonn U.)
Serial powering is the baseline option for the pixel detectors in both the ATLAS and the CMS experiments targeting the phase II HL-LHC upgrade. The Shunt-LDO regulator is integrated in the front-end chips to generate the required supply voltages. [...]
SISSA, 2020 - 5 p.
- Published in : PoS TWEPP2019 (2020) 067
Fulltext: PDF;
In : TWEPP 2019 Topical Workshop on Electronics for Particle Physics, Santiago De Compostela, Spain, 2 - 6 Sep 2019, pp.067
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Serial powering optimization for CMS and ATLAS pixel detectors within RD53 collaboration for HL-LHC: system level simulations and testing
/ Orfanelli, Stella (CERN) ; Christiansen, Jorgen (CERN) ; Hamer, Matthias (U. Bonn (main)) ; Hinterkeuser, F (U. Bonn (main)) ; Karagounis, M (FH Dortmund) ; Pradas Luengo, Alvaro (Zaragoza, ITA) ; Marconi, Sara (INFN, Perugia ; Perugia U. ; CERN) ; Ruini, Daniele (Zurich, ETH)
Serial powering is the baseline choice for low mass power distribution for the CMS and ATLAS HL-LHC pixel detectors. Two 2.0 A Shunt-LDO regulators are integrated in a prototype pixel chip implemented in 65-nm CMOS technology and used to provide constant supply voltages to its power domains from a constant input current. [...]
CMS-CR-2017-385.-
Geneva : CERN, 2017 - 5 p.
- Published in : PoS TWEPP-17 (2017) 055
Fulltext: PDF; External link: PoS Server
In : Topical Workshop on Electronics for Particle Physics, Santa Cruz, Ca, United States Of America, 11 - 15 Sep 2017, pp.055
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System level serial powering studies of RD53A chip
/ Pradas Luengo, Alvaro (Zaragoza, ITA) ; Koukola, Dominik (CERN) ; Orfanelli, Stella (CERN) ; Christiansen, Jorgen (CERN) ; Karagounis, Michael (Fachhochschule Dusseldorf) ; Arteche, Fernando (Zaragoza, ITA)
Serial powering is the baseline choice for low mass power distribution for the CMS and ATLAS HL-LHC pixel detectors. The RD53A prototype chip (65 nm CMOS) integrates 2 shunt-LDO (SLDO) regulators that allow providing constant voltage to each power domain (analog and digital) within a serial power chain with constant current. [...]
SISSA, 2019 - 5 p.
- Published in : PoS TWEPP2018 (2019) 147
In : Topical Workshop on Electronics for Particle Physics, Antwerp, Belgique, 17 - 21 Sep 2018, pp.147
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Advanced power analysis methodology targeted to the optimization of a digital pixel readout chip design and its critical serial powering system
/ Marconi, S (Perugia U. ; INFN, Perugia ; CERN) ; Orfanelli, S (CERN) ; Karagounis, M (Dortmund U.) ; Hemperek, T (Bonn U.) ; Christiansen, J (CERN) ; Placidi, P (Perugia U. ; INFN, Perugia)
A dedicated power analysis methodology, based on modern digital design tools and integrated with the VEPIX53 simulation framework developed within RD53 collaboration, is being used to guide vital choices for the design and optimization of the next generation ATLAS and CMS pixel chips and their critical serial powering circuit (shunt-LDO). Power consumption is studied at different stages of the design flow under different operating conditions. [...]
2017 - 10 p.
- Published in : JINST 12 (2017) C02017
In : Topical Workshop on Electronics for Particle Physics, Karlsruhe, Germany, 26 - 30 Sep 2016, pp.C02017
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Serial powering characterisation for the CMS Inner Tracker at the High Luminosity LHC
/ Ceccarelli, Rudy (INFN, Florence)
The CMS tracking system will be completely replaced in order to operate in the extreme conditions of the High Luminosity LHC.
The new tracker will consist of two main subdetectors:
the Inner Tracker, containing pixel modules, and the Outer Tracker, consisting of strip and macro-pixel modules.
In the Inner Tracker, silicon sensors will be read out by the CMS Readout Chip (CROC).
The chip, built in 65 nm CMOS technology, is able to withstand high radiation doses (500\,Mrad) and hit rates (3\,$\mathrm{GHz/cm^2}$ on the innermost tracking layer) during operation.
Moreover, it must handle a finer sensor granularity (2500\,$\mu\mathrm{m^2}$ pixels) and operate at low detection thresholds (1000\,$\mathrm{e^-}$).
The Inner Tracker will make use of the serial powering scheme to provide the $\sim60\,\mathrm{kW}$ required by $\sim4000$ modular units.
The Shunt-LDO (SLDO) regulator is the part of the CROC responsible for providing the power by draining a constant current in time, independently of the chip power consumption.
Tests performed with Single Chip Cards (SCC) in serial configurations are reported in this paper..
CMS-CR-2023-280.-
Geneva : CERN, 2024 - 9 p.
- Published in : JINST 19 (2024) C01056
Fulltext: CR2023_280 - PDF; Publication - PDF;
In : 16th Topical Seminar on Innovative Particle and Radiation Detectors, Siena, Italy, 25 - 29 Sep 2023, pp.C01056
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