GEMINI is a readout ASIC dedicated to the Triple-GEM detector. Fabricated in CMOS 180 nm technology, GEMINI pushes towards the state-of-the-art for this peculiar detector front-end, as regards the count rate and detector pixel parasitic capacitance sustainability. It features 16 channels, each one including a charge-sensitive preamplifier, an event discriminator with channel-independent threshold and an event-triggered reset. An embedded automatic calibration unit compensates performance for environmental, CMOS process and supply voltage variations. GEMINI sustains a 5Mcps count rate, managing up to 40 pF GEM detector capacitance and consuming 2.7mW/ch.
Pezzotta, A., Corradi, G., Croci, G., DE MATTEIS, M., Murtas, F., Tagnani, D., et al. (2015). GEMINI, a CMOS 180 nm mixed-signal 16-channel ASIC for Triple-GEM detectors readout. In 2015 IEEE SENSORS - Proceedings (pp.1134-1137). Institute of Electrical and Electronics Engineers Inc. [10.1109/ICSENS.2015.7370468].
GEMINI, a CMOS 180 nm mixed-signal 16-channel ASIC for Triple-GEM detectors readout
PEZZOTTA, ALESSANDROPrimo
;CROCI, GABRIELE;DE MATTEIS, MARCELLO;GORINI, GIUSEPPEPenultimo
;BASCHIROTTO, ANDREAUltimo
2015
Abstract
GEMINI is a readout ASIC dedicated to the Triple-GEM detector. Fabricated in CMOS 180 nm technology, GEMINI pushes towards the state-of-the-art for this peculiar detector front-end, as regards the count rate and detector pixel parasitic capacitance sustainability. It features 16 channels, each one including a charge-sensitive preamplifier, an event discriminator with channel-independent threshold and an event-triggered reset. An embedded automatic calibration unit compensates performance for environmental, CMOS process and supply voltage variations. GEMINI sustains a 5Mcps count rate, managing up to 40 pF GEM detector capacitance and consuming 2.7mW/ch.
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