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A fully integrated low-power CMOS particle detector front-end for space applications

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5 Author(s)
Vandenbussche, J. ; ESAT, Katholieke Univ., Leuven, Heverlee, Belgium ; Leyn, F. ; Van der Plas, G. ; Gielen, G.
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A fully integrated low-power complementary metal-oxide-semiconductor (CMOS) particle detector front-end (PDFE), optimized for space applications, is presented. The front-end comprises a charge sensitive amplifier and a four-stage semi-Gaussian pulse-shaping amplifier. The chip was custom synthesized with an analog synthesis environment. With a power consumption of only 10 mW and a chip area less than 1 mm2, the chip is very well suited for the stringent demands in space applications. Measurements show a peaking time of 1.2 μs and a total equivalent noise charge of less than 1000 erms-. Although a standard 0.7-μm CMOS was used, little performance degradation was observed after exposure to a total dose irradiation of 50 kRad. All tested chips fully recovered within specifications, after 24 h of annealing at room temperature

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Nuclear Science, IEEE Transactions on  (Volume:45 ,  Issue: 4 )