AC Sweep Phase Margin Simulation

Run an AC sweep using the @simulator and show the phase margin at the gain crossover frequency.

Thought for 32 sec

I have 1 question before running the AC sweep:

Should I use a generic op-amp model (open-loop gain 100 dB, dominant pole at 10 Hz) for U2, or do you have a specific SPICE macro-model you’d like me to use?

Let's use the generic op-amp model with 100 dB gain and 10 Hz pole. Please proceed with the AC sweep.

Thought for 7 mins 38 sec

Here’s the summary of the AC sweep:

Table

Metric	Value
Gain Crossover Frequency (f_gc)	≈ 91 kHz
Phase Margin at f_gc	≈ 90°

Let me know if you need further analysis or a plot of the Bode response!

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The phase margin of ~90° looks good. Please show me a combined Bode plot with both magnitude and phase curves.

Thinking for 18 days 4 hrs...

The response is taking longer than expected.

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