Digital Architecture and Interface of the New ATLAS Pixel Front-End IC for Upgraded LHC Luminosity

作者：Arutinov David^*; Barbero Marlon; Beccherle Roberto; Buescher Volker; Darbo Giovanni; Ely Robert; Fougeron Denis; Garcia Sciveres Maurice; Gnani Dario; Hemperek Tornasz; Karagounis Michael; Kluit Ruud; Kostyukhin Vadim; Mekkaoui Abderrezak; Menouni Moshine; Schipper Jan David; Wermes Norbert

来源：IEEE Transactions on Nuclear Science, 2009, 56(2): 388-393.

DOI：10.1109/TNS.2009.2015318

• Digital integrated circuits
• FE-I4
• front end electronics
• pixel detectors
• pixel electronics

A new pixel Front-End Integrated Circuit is being developed in a 130 nm technology for use in the foreseen b-layer upgrade of the ATLAS pixel detector. Development of this chip is considered as an intermediate step towards super-LHC upgrade, and also allows having a smaller radius insertable pixel layer. The higher luminosity for which this chip is tuned implies a complete redefinition of the digital architecture logic with respect to the current ATLAS pixel Front-End. The new digital architecture logic is not based on a transfer of all pixel hits to the periphery of the chip, but on local pixel logic, local pixel data storage, and a new mechanism to drain triggered hits from the Double-Column. An overview of the new chip will be given with particular emphasis on the new digital logic architecture and possible variations. The new interface needed to configure and operate the chip will also be described.

• 出版日期2009-4