Development of the read-out ASIC for muon chambers of the CBM experiment
2015
A front-end ASIC for GEM detectors readout in the CBM experiment is presented. The design has the following features: dynamic range of 100 fC, channel hit rate of 2 MHz, ENC of 1000 e- at 50 pF, power comsumption of 10 mW per channel, 6 bit SAR ADC. The chip includes 8 analog processing chains, each consisting of preamplifier, two shapers (fast and slow), differential comparator and an area efficient 6 bit SAR ADC with 1.2 mW power consunption at 50 Msps. The chip also includes the threshold DAC and the digital part.
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