ALTIROC1, a 25 pico-second time resolution ASIC for the ATLAS High Granularity Timing Detector (HGTD) - Archive ouverte HAL
Communication Dans Un Congrès Année : 2020

ALTIROC1, a 25 pico-second time resolution ASIC for the ATLAS High Granularity Timing Detector (HGTD)

Résumé

ALTIROC1 is a 25-channel ASIC designed to read out the 5 x 5 matrix of 1.3 mm x 1.3 mm x 50 μm low Gain Avalanche Diodes (LGAD) of the ATLAS HGTD detector foreseen for the HL-LHC upgrade. The targeted combined time resolution of the sensor and the readout electronics is from 40 ps/hit (initial) to about 80 ps/hit (end of operational lifetime). Each ASIC channel integrates a RF preamplifier followed by a high speed discriminator and two TDCs for Time-of- Arrival and Time-Over-Threshold measurements as well as a local memory. This front-end must exhibit an extremely low jitter noise while keeping a challenging power consumption of less than 4.5 mW. Detailed measurements are presented.

Dates et versions

hal-02572508 , version 1 (13-05-2020)

Identifiants

Citer

Nathalie Seguin-Moreau, S. Conforti, P. Dinaucourt, C de La Taille, G Martin-Chassard, et al.. ALTIROC1, a 25 pico-second time resolution ASIC for the ATLAS High Granularity Timing Detector (HGTD). Topical Workshop on Electronics for Particle Physics, Sep 2019, Santiago de Compostela, Spain. pp.042, ⟨10.22323/1.370.0042⟩. ⟨hal-02572508⟩
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