Cascade amplifier

From Wikipedia, the free encyclopedia

You have new messages (last change).

A cascade amplifier has many of the same benefits as a cascode. A cascade is basically a differential amplifier with one input grounded and the side with the real input has no load. It can also be seen as a common collector (emitter follower) followed by a common base. Since the input side has no load there is no gain on that side and the miller effect does not come into play. In addition, Vds or Vce stays fairly constant which reduces distortion. Its advantage over the cascode is that it does not require as much voltage headroom. Its disadvantage is since it has two legs it requires twice as much current as a cascode for similar performance.

Retrieved from "http://en.wikipedia.org../../../c/a/s/Cascade_amplifier.html"