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  1. T

    Why matching impedance of LNA since we only concern about signal voltage?

    Thanks for your reply. But when we talk about impadance matching for LNA, it is Zl=Zi*. Is it happen to be that power matching is the same situation as noise matching?
  2. T

    Why matching impedance of LNA since we only concern about signal voltage?

    Hi all, I am wondering why we do impedance matching for LNA. Because in most sensor circuits where opamps are used it is the input voltage to amplifiers are maximized. From this post https://www.edaboard.com/threads/67820/ I only understand that when maximum power transfered to system the...

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