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Communication Dans Un Congrès Année : 2022

HGCROC3: the front-end readout ASIC for the CMS High Granularity Calorimeter

Résumé

For the CMS High Granularity Calorimeter (CE), the final version of the 72-channel front-end ASIC (HGCROC3) was submitted in December 2020. HGCROC3 includes low-noise/high-gain preamplifiers/shapers and a 10-bit 40 MHz successive approximation ADC (SAR-ADC) that provide the charge measurement over the linear range of the preamplifier. In the saturation range, a discriminator and a time-to-digital converter (TDC) provide the charge information from the time over threshold (ToT; 200 ns dynamic range, 50 ps binning). A fast discriminator and another TDC provide timing information to 25 ps accuracy. The chip embeds all necessary ancillary services: bandgap circuit, PLL, threshold DACs. We present the experimental results on the latest and final version (HGCROC3) received in April 2021.

Dates et versions

hal-03610231 , version 1 (16-03-2022)

Identifiants

Citer

F. Bouyjou, G. Bombardi, F. Dulucq, A. El Berni, S. Extier, et al.. HGCROC3: the front-end readout ASIC for the CMS High Granularity Calorimeter. Topical Workshop on Electronics for Particle Physics, Sep 2021, Online Conference, France. pp.C03015, ⟨10.1088/1748-0221/17/03/C03015⟩. ⟨hal-03610231⟩
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