Custom integrated front-end circuit for the CMS electromagnetic calorimeter

A wide dynamic range multi-gain transimpedance amplifier custom integrated circuit has been developed for the readout of avalanche photodiode and vacuum phototriode in the CMS electromagnetic calorimeter for LHC experiment. The 92 db input dynamic range is divided into four ranges of 12 bits each in...

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Bibliographic Details
Main Authors: Walder, J.P., Bussat, J.M., Denes, P., Mathez, H., Pangaud, P.
Format: Conference Proceeding
Language:English
Subjects:
Avalanche photodiodes
Circuit noise
Collision mitigation
Dynamic range
Energy resolution
Large Hadron Collider
Leakage current
Logic
Preamplifiers
Signal resolution
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Description
Summary:A wide dynamic range multi-gain transimpedance amplifier custom integrated circuit has been developed for the readout of avalanche photodiode and vacuum phototriode in the CMS electromagnetic calorimeter for LHC experiment. The 92 db input dynamic range is divided into four ranges of 12 bits each in order to provide 40 MHz analog sampled data to a 12 bits ADC. This concept, which has been integrated in rad-hard full complementary bipolar technology, will be described. Experimental results obtained in lab and under irradiation will be presented along with test strategy being used for mass production.
ISSN:1082-3654
2577-0829
DOI:10.1109/NSSMIC.2000.949886