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Current source

  1. Oct 31, 2005 #1
    What is the difference between a current source using an op amp and one using a single transistor? Why would you use one over the other, etc? Thanks!
  2. jcsd
  3. Nov 1, 2005 #2
    Usually the op-amp current source will be more stable because of the fact that it runs a higher open loop gain and typically has a higher negative feedback. See the negative feedback thread.
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