Performance of the Amplifier-shaper-discriminator ASICs Produced for the ATLAS MDT Chambers at the HL-LHC

The front-end electronics of the ATLAS muon drift-tube chambers will be upgraded in the experiment’s phase-II upgrade to comply with the new trigger and read-out scheme at the HL-LHC. A new amplifier shaper discriminator chip was developed in 130 nm Global Foundries technology for this upgrade. A preproduction of 7500 chips was launched in 2019 and tested in 2020. The presentation will summarize the functionality of the new ASD chip, the test set-up and testing procedure as well as the test results which show a production yield of 93%. Based on the successful test of the preproduction chip the serious production of 80,000 chips was carried out in fall 2020. The tests of a sample of 1000 production chips show the same yield as the preproduction chips.