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Efficiency of OPamplifier

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jayce3390

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I am using an OPA. I want to get its efficiency, but since it's not a power amplifier, we can't talk about power added efficiency.

How to calculate efficiency of an OPA? eff % = 100 x Pout(W)/Pdc(W) ??

Could you say me if I can compute it in this way :

 

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