Investigation of the signal resolution of a high-T-c balanced comparatorстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The use of high-T-c Josephson junctions far digital applications requires a careful study of the influence of thermal noise on circuit performance. We investigated a balanced current comparator, which contains a basic component of all RSFQ circuits: two overdamped Josephson junctions connected in series. The dependence of the dc-voltage across the Josephson junctions on signal current was measured to determine the threshold uncertainty of switching of the comparator The experimental data obtained at different sampling pulse frequencies, in a temperature range from 10 to 50K were compared with a theoretical model, taking into account the influence of thermal noise as well as of sampling pulse frequency.