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An Integrated Multi-Channel Readout for ATLAS Monitored Drift Tubes

Eric Hazen, Jim Shank
Boston University

John Huth, John Oliver
Harvard University

Werner Riegler
CERN, Geneva, Switzerland

October 10, 1996

Abstract:

An integrated readout system for the ATLAS Monitored Drift Tubes (MDTs) is presented, based on an eight-channel CMOS amplifier-shaper-discriminator (ASD) chip. Extensive pulse shape studies provide the basis for a multi-channel signal processing architecture, which may extract leading edge, trailing edge, multi-track and ADC information. Key elements have been prototyped in full-custom IC's, and show that the required performance can be obtained with 1.2 CMOS technology. Test results for a pre-amplifier IC, a discriminator IC, and a multi-channel integrated amplifier+discriminator are presented, along with plans for a full-scale integrated ASD.





Eric Hazen
Thu Oct 10 18:19:00 METDST 1996