VMM1 - An ASIC for micropattern detectors

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Abstract

We present VMM1, the first prototype of a family of front-end ASICs designed for the ATLAS muon upgrade. The ASIC will operate with MICROMEGAS and TGC detec- tors, providing charge and timing measurements along with other features including sub-hysteresis discrimination, address of the first event in real time, and digital output per channel for Time-over-Threshold measurements. The shaper, designed via the concept of Delayed Dissipative Feedback (DDF), supports analog dynamic ranges in excess of 10 000. With a capacitance of 200 pF and a nominal peaking time of 25 ns, the ASIC offers resolution of charge and timing better than 1 fC and 1 ns, respectively, for input charges up to 2 pC. Designed in a commercial 130 nm technology it dissipates about 4.5 mW per channel.

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APA

De Geronimo, G., Fried, J., Li, S., Metcalfe, J., Nambiar, N., Vernon, E., & Polychronakos, V. (2012). VMM1 - An ASIC for micropattern detectors. In IEEE Nuclear Science Symposium Conference Record (pp. 633–639). https://doi.org/10.1109/NSSMIC.2012.6551184

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