+1 vote
in Linear Integrated Circuits by (37.1k points)
Which current source exhibits a very high output resistance?

(a) Simple current mirror

(b) Wilson current mirror

(c) Widlar current mirror

(d) All of the mentioned

I got this question by my college director while I was bunking the class.

The question is from Operational Amplifier Internal Circuit in division Operational Amplifier of Linear Integrated Circuits

1 Answer

0 votes
by (39.8k points)
Correct answer is (b) Wilson current mirror

Break it down: The output resistance of Wilson current mirror is substantially greater than ≅(β× Output resistance)/2 than Simple or Widlar current source.

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