Self-biased amplifier, large signal
Does anyone have any data (or ideas) on what happens to drain current when a self-biased LNA is driven to compression? It seems like the source resistor will counteract the normal tendency for current to rise... because the current would drive the gate closer to pinch-off. Could the current actually DROP at maximum output power?
This just in.... we have some data on a self-biased amplifier where the current drops when it is saturated. I guess this is yet another good reason NOT to use the self-biased trick on a power amp or driver amp... as the power will be limited by the shift in quiescent point.
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