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Hey, Keith
As you mentioned earlier 1F + 1G ohm between output and feedback node, how small and how big these 2 elements (R, and C) can be? is there a limit ?
Thanks
Thank you Keith!
I have another question about the AC signal input in HSPICE. Here is my DC and AC input
VXX pot1 port2 DC 1V AC 1, this AC 1 is it really necessary to be "1", or it can be any voltge? how about AC 0.1? what is the difference?
When specify the plot in HSPICE,
PLOT AC VDB(output)...
Thanks for all the feedback, I think the discussion has gone beyond my level of underatanding. I have attached 2 configuration for open loop simulation that I am currently using, can anyone help me explain which way is right and which way is better and what is the right hspice statement to use...
That's exactly what I have seen on the low frequency. I have seen people cut the negative feedback then supply the DC + small AC to the non-inverting input and supply same DC on the inverting input for AC simulation. What is the difference between this technique vs. big RC feedback technique...
I am new to analog world, can someone show me how to set up and write the hspice input file to simulate the open loop gain/phase margin for this single stage OP Amp? It's an OP amp with negative feedback.
Many thanks
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