Title :
The MGPA electromagnetic calorimeter readout chip for CMS
Author :
Raymond, M. ; Crooks, J. ; French, M. ; Hall, G.
Author_Institution :
Blackett Lab., Imperial Coll., London, UK
Abstract :
The multiple gain pre-amplifier is a three gain channel 0.25 micron CMOS chip matched to the noise and linearity requirements of the electromagnetic calorimeter for CMS. A choice of external feedback components to the first stage amplifier allows the chip to be used for both barrel and end-cap regions of the detector. Details of the design and performance measurements are presented.
Keywords :
CMOS integrated circuits; avalanche photodiodes; calorimeters; nuclear electronics; particle calorimetry; preamplifiers; readout electronics; solid scintillation detectors; 0.25 mum; CMOS chip; CMS; MGPA electromagnetic calorimeter readout chip; barrel region; end-cap region; external feedback components; first stage amplifier; linearity requirement; multiple gain preamplifier; noise requirement; three gain channel; Collision mitigation; Detectors; Electromagnetic radiation; Laboratories; Large Hadron Collider; Linearity; Performance gain; Preamplifiers; Pulse shaping methods; Shape;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2004 IEEE
Print_ISBN :
0-7803-8700-7
Electronic_ISBN :
1082-3654
DOI :
10.1109/NSSMIC.2004.1462172
