raja.cedt
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hi, it depends on how transistor is being used.lets consider common source amp with diode convected load,here main transistor will be giving directly input referred voltage so for this high gm required where are load device is dumping noise current into main transistor so it gm should be as low as possible.Like this we have to analyse for every ckt that whether Transistor is dumping current or directly giving input referred voltage noise. Thanks, Rajasekhar.
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