J. Vandenbussche et al., A FULLY INTEGRATED LOW-POWER CMOS PARTICLE DETECTOR FRONT-END FOR SPACE APPLICATIONS, IEEE transactions on nuclear science, 45(4), 1998, pp. 2272-2278
A fully integrated low-power complementary metal-oxide-semiconductor (
CMOS) particle detector front-end (PDFE), optimized for space applicat
ions, is presented. The front-end comprises a charge sensitive amplifi
er and a four-stage semi-Gaussian pulse-shaping amplifier. The chip wa
s custom synthesized with an analog synthesis environment. With a powe
r consumption of only 10 mW and a chip area less than 1 mm(2), the chi
p is very well suited for the stringent demands in space applications.
Measurements show a peaking time of 1.2 mu s and a total equivalent n
oise charge of less than 1000 e(rms)(-). Although a standard 0.7-mu m
CMOS was used, little performance degradation was observed after expos
ure to a total dose irradiation of 50 kRad. All tested chips fully rec
overed within specifications, after 24 h of annealing at room temperat
ure.