Design of a Time-to-Digital Converter ASIC and a mini-DAQ system for the Phase-2 Upgrade of the ATLAS Monitored Drift Tube detector

We present the second prototype of a time-to-digital (TDC) ASIC for the upgrade of the ATLAS Monitored Drift Tube (MDT) detector for High-Luminosity LHC operations. Compared to the first prototype, triple modular redundancy has been implemented for the configuration and flow control logic. The total...

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Bibliographic Details
Published in:arXiv.org 2020-11
Main Authors: Guo, Yuxiang, Wang, Jinhong, Yu, Liang, Xiong, Xiao, Hu, Xueye, An, Qi, Chapman, J W, Dai, Tiesheng, Zhao, Lei, Zhao, Zhengguo, Zhou, Bing, Zhu, Junjie
Format: Article
Language:English
Subjects:
Application specific integrated circuits
Configurations
Converters
Cosmic rays
Data transmission
Drift tubes
Electronics
Flow control
Large Hadron Collider
Luminosity
Power consumption
Prototypes
Redundancy
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Summary:We present the second prototype of a time-to-digital (TDC) ASIC for the upgrade of the ATLAS Monitored Drift Tube (MDT) detector for High-Luminosity LHC operations. Compared to the first prototype, triple modular redundancy has been implemented for the configuration and flow control logic. The total power consumption is increased by less than 10 mW while achieving the same time resolution and channel uniformity. A mini-DAQ system has been built to verify the front-end electronics chain with the new prototype together with other ASICs and boards in triggered mode. Cosmic ray tests with a small-diameter MDT chamber indicate that the configuration and data transmission of the readout electronics perform well. It is expected that this prototype design will be used in the final production.
ISSN:2331-8422
DOI:10.48550/arxiv.2011.11699