Title :
Custom integrated front-end circuit for the CMS electromagnetic calorimeter
Author :
Walder, J.P. ; Bussat, J.-M. ; Denes, P. ; Mathez, H. ; Pangaud, P.
Author_Institution :
Inst. de Phys. Nucl. de Lyon, Villeurbanne, France
Abstract :
A wide dynamic range multigain transimpedance amplifier custom integrated circuit has been developed for the readout of avalanche photodiode and vacuum phototriode in the CMS electromagnetic calorimeter for the Large Hadron Collider 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 bit analog-to-digital converter. This concept, which has been integrated in rad-hard full complementary bipolar technology, will be described. Experimental results obtained in the lab and under irradiation will be presented along with the test strategy being used for mass production.
Keywords :
analogue-digital conversion; avalanche photodiodes; bipolar digital integrated circuits; nuclear electronics; particle calorimetry; readout electronics; solid scintillation detectors; 40 MHz; CMS electromagnetic calorimeter; Large Hadron Collider experiment; analog-to-digital converter; avalanche photodiode; bipolar custom integrated circuits; custom integrated front-end circuit; rad-hard full complementary bipolar technology; readout; vacuum phototriode; wide dynamic range multigain transimpedance amplifier custom integrated circuit; Analog-digital conversion; Avalanche photodiodes; Circuit noise; Collision mitigation; Dynamic range; Integrated circuit technology; Large Hadron Collider; Logic; Preamplifiers; Signal resolution;
Journal_Title :
Nuclear Science, IEEE Transactions on
