On Sun, Dec 22, 2024 at 11:20 AM, Tom wrote:
...
.subckt D_OpAmp inp inn outp outn vcm
R1 outp n01 1
R2 n01 outn 1
G1 n01 outp inp inn 100MEG
G2 outn n01 inp inn 100MEG
G3 0 n01 vcm n01 100MEG
.ends D_OpAmp
Hmm.? I don't see anything to control the bandwidth.? So it is theoretically flat with 160 dB gain from DC to light.
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It might work.? Or it might not.? Any good op-amp, either a model or real, should have a dominant pole giving it a controlled roll-off as you go up in frequency.
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And of course the model has no supply voltages, so its inputs and outputs are compliant to +/- infinity - which could be how you want an ideal model to be.
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Andy
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