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The actual circuit does not match the simulation circuit. I don't know why. Please tell me. Thank you. The actual op amp is OP297. [Copy link]

The actual circuit does not match the simulation circuit. I don't know why. Please tell me. Thank you. The actual op amp is OP297.

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You don’t even have the coordinates of the actual amplitude-frequency curve (the vertical coordinate is obviously wrong), so how can others help you?  Details Published on 2022-5-1 08:16

2w

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Is it the wrong chip model?

There is no OP297 model in the simulation software.

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It uses 07 simulation, but actually uses OP297

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OP297 unity gain bandwidth is too small

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2w

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5
 

The actual op amp used does not match the model used in the simulation, so it is expected that the results will not match.

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2w

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The op amp used in the actual circuit is different from the model of the simulated op amp. Are the values of the resistors and capacitors used in the actual circuit exactly the same as those used in the simulation?

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The actual op amp used does not match the model used in the simulation, so it is expected that the results will not match.

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1573

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The 5th floor is right, different op amps vary greatly

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The op amps are all different, download the OP297 spice model yourself

https://www.analog.com/cn/products/op297.html

Don't tell me you don't know how to import models... There are a lot of tutorials online

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You don’t even have the coordinates of the actual amplitude-frequency curve (the vertical coordinate is obviously wrong), so how can others help you?
This post is from Analog electronics
 
 
 
 

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