The radiation tolerance of a low voltage LDO developed for the CMS HGCAL on-detector electronics system. (1st March 2022)

• Record Type: Journal Article
• Authors: Irshad, A.; Ceard, L.
• Is Part Of: Journal of instrumentation. Volume 17:Number 3(2022)
• Publication Date: 2022-03-01
• Subjects: Radiation damage to electronic components -- Radiation-hard electronics; Scientific apparatus and instruments -- Periodicals; 502.84
• DOI: 10.1088/1748-0221/17/03/C03041
• Languages: English
• ISSNs: 1748-0221

Abstract

Abstract: The CMS detector will undergo the replacement of its current endcap calorimeter by a new high granularity calorimeter (HGCAL). The new HGCAL will need to withstand much higher radiation levels than the present endcaps. This poses tight requirements on the front-end electronics, including the powering chain. As part of this chain, a low-dropout linear regulator (LDO) has been designed and prototyped for post-regulation for HGCAL, providing extremely low noise and stable power to the analog front-end. We present results from tests of the LDO, including from a detailed irradiation campaign.