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Abstract—A differential comparator that can sample 40-Gb/s
signals and that operates off a single 1.2-V supply was designed
and fabricated in 0.11- m standard CMOS technology. It consists
of a front-end sampler, a regenerative stage, and a clocked amplifier
to provide a small aperture time and a high toggle rate. The
clocked amplifier employs a bandwidth modulation technique that
switches the feedback gain to reduce the reset time while keeping
the effective gain high.We confirmed that the comparator receives
a 40-Gb/s data stream at a toggle rate of 10 GHz with bit error rate
less than 10e-12 by laboratory measurements. |
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eetop公众号
创芯大讲堂
创芯人才网
发表于 2007-1-12 23:12:15
