Multiple choice

In a transconductance amplifier, it is desirable to have

  1. a large input resistance and a large output resistance

  2. a large input resistance and a small output resistance

  3. a small input resistance and a large output resistance

  4. a small input resistance and a small output resistance
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A Correct answer
Explanation

In the transconductance amplifier, it is desirable to have large input resistance and large output resistance. ideally, Id = Gm.Vs Id = Gm.Vi(Rd/Rd+RL) if Rd>>RL, Id = Gm Vi Vi = Vs if Ri >> Rs

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