| 摘要 |
Traditionally, constant current source circuits (and, in particular, constant current source circuits that include cascoded current sources) had numerous drawbacks due to parasitic capacitances, especially at higher switching frequencies. Here, however, a constant current source circuit is provided which uses main and replica constant current source circuitry (with buffering therebetween) to counteract the problems created by parasitic capacitances. Thus, with these new circuits, a generally constant current can be generated, regardless of switching frequency.
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