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Tool/software:
for this OPA, if the input ac source is an RX ant(typ. 50 ohm), do we need to consider impedance match to reduce power reflection?
Hello Xiaoshuai,
It depends on the input frequency and your cable/trace length. Here is a link to an article on transmission line that shows a useful table on thresholds (length vs frequency) where you would start to see power reflections.
Thank you,
Sima