Machine-translated by Google. Questions are authored in English.
Top

Discussion

What does an uncompensated amplifier offer in exchange for its restrictions?

  • A.A higher open-loop gain at low frequency
  • B.Freedom from any stability considerations at all
  • C.A wider bandwidth at gains above its minimum
  • D.A lower input offset voltage than a compensated device

Answer: C

Without the dominant pole its open-loop response extends much further, so at a closed-loop gain above the specified minimum it delivers considerably more bandwidth than a compensated device would. Offset and low-frequency gain are unrelated, and stability becomes more of a concern rather than less. A device that shifts a design constraint onto the user in exchange for performance is a reasonable bargain when the user knows the constraint, and a trap when they do not.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.