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LT1166 LTspice model bug?

Category: Software
Product Number: LT1166
Software Version: "10/18/23 LT1166 Improved operating point convergence." on Model Change Log.

"10/18/23 LT1166 Improved operating point convergence." is written on Model Change Log in LTspice ver24.

There is a simulation result difference between model change before and after.

As an example, AC analysis result is attached.

Below is OLD model result. Gain is flat.

Below is NEW model result. Gain is not flat as like a band pass filter.

OLD model seems correct in my feeling.

Could you please formal answer?

You can try it by using LT1166 Example Circuit in LTspice.

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