IN noise parameter for RROPAMP broken in noise simulation

QSPICE
1

I’m running a very simple noise simulation with an RROPAMP amplifier. It seems like the IN noise parameter is only calculated on the inverting input, but not on the non-inverting input, making the total output noise seem far too low.

I’d like to add the simulation file, but I can’t (new user).

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I’m seeing only 40nV/sqrt(Hz); which is 10p * 4k. The non-inverting input should add another 10p * 1k * 5 = 50 nV/sqrt(Hz)

2

Probably you should wait for a while, I believe @Engelhardt will fix soon some issues with this part…