Radiation Tolerance Evaluation Of The Atlas Rpc Coincidence Matrix Submicron Technology

The Coincidence Matrix ASIC is the central part of the ATLAS level-1 muon trigger in the barrel region; it performs the trigger algorithm and data read-out. The ASIC will be mounted on dedicated boards on the Resistive Plate Chamber detectors. The chosen technology has to guarantee complete functionality in the ATLAS RPC radiation environment. Radiation tests have to satisfy the radiation tolerance criteria proposed by the ATLAS Policy on Radiation Tolerant Electronics. The ATLAS standard test methods has to be followed in order to guarantee both total dose and single event effects tolerance.A frequency multiplier ASIC was used for technology evaluation and radiation tests. The chip is a low jitter programmable clock multiplier, realised in 0.25 mum CMOS technology. This frequency multiplier is intended to be used in the Coincidence Matrix ASIC as a macro, to perform the internal clock frequency multiplication. Radiation test results will be presented.