VMM - An ASIC for Micropattern Detectors

George Iakovidis, S. Dalla Torre, B. Gobbo, S. Levorato, L. Ropelewski, F. Tessarotto
2018 EPJ Web of Conferences  
The VMM is a custom Application Specific Integrated Circuit (ASIC) that can be used in a variety of charge interpolated tracking detectors. It is designed to be used with the resistive strip micromegas and sTGC detectors in the New Small Wheel upgrade of the ATLAS Muon spectrometer. The ASIC is designed at Brookhaven National Laboratory and fabricated in the 130 nm Global Foundries 8RF-DM process. It is packaged in a Ball Grid Array with outline dimensions of 21×21 mm 2 . It integrates 64
more » ... ls, each providing charge amplification, discrimination, neighbour logic, amplitude and timing measurements, analog-to-digital conversions, and either direct output for trigger or multiplexed readout. The front-end amplifier can operate with a wide range of input capacitances, has adjustable polarity, gain and peaking time. The VMM1 and VMM2 are the first two versions of the VMM ASIC family fabricated in 2012 and 2014 respectively. The design, tests and qualification of the VMM1, VMM2 and roadmap to VMM3 are described.
doi:10.1051/epjconf/201817407001 fatcat:nmnqkkau5zazdprplc5dwjmzwi