ALTIROC0, a 20 pico-second time resolution ASIC for the ATLAS High Granularity Timing Detector (HGTD) - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2018

ALTIROC0, a 20 pico-second time resolution ASIC for the ATLAS High Granularity Timing Detector (HGTD)

Résumé

ALTIROC0 is an 8-channel ASIC prototype designed to readout 1x1 or 2x2 mm2 50 µm thick Low Gain Avalanche Diodes (LGAD) of the ATLAS High Granularity Timing Detector (HGTD). The targeted combined time resolution of the sensor and the readout electronics is 30 ps for one MIP. Each analog channel of the ASIC must exhibit an extremely low jitter to ensure this challenging time resolution, while keeping a low power consumption of 2 mW/channel. A “Time Over Threshold” and a “Constant Fraction Discriminator” architecture are integrated to correct for the time walk. Test bench measurements performed on the ASIC received in April 2017 are presented.

Dates et versions

hal-02058308 , version 1 (05-03-2019)

Identifiants

Citer

Christophe de La Taille, Stéphane Callier, Selma Conforti Di Lorenzo, Nathalie Seguin-Moreau, P Dinaucourt, et al.. ALTIROC0, a 20 pico-second time resolution ASIC for the ATLAS High Granularity Timing Detector (HGTD). Topical Workshop on Electronics for Particle Physics, Sep 2017, Santa Cruz, United States. pp.006, ⟨10.22323/1.313.0006⟩. ⟨hal-02058308⟩
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