First of all, thanks for reading this, I tried to replicate this research as my project (not aim to publish or anything just for study purpose)
Reference: https://www.iasj.net/iasj/download/ceca8bad4ee05e7c
Now I tried to guess and do what I can do about this circuit and the result is this (Multiple feedback)
the magnitude of the decibel seems weird and wrong compare to the original in the reference
I couldn't find the UA748cp spice model so I downloaded UA748 instead and moreover is that inside the file UA748, the name of the model is UA776H, so I guess it has a similar property?
I don't know what I'm wrong with this because I'm new to this kind of topic. I would really appreciate it if you could guide me. Thank you
This is the graph from my simulation in LTspice XVII
This is the graph from the original one
I also wonder if anyone know what this (!) means?
Reference: https://www.iasj.net/iasj/download/ceca8bad4ee05e7c
Now I tried to guess and do what I can do about this circuit and the result is this (Multiple feedback)
the magnitude of the decibel seems weird and wrong compare to the original in the reference
I couldn't find the UA748cp spice model so I downloaded UA748 instead and moreover is that inside the file UA748, the name of the model is UA776H, so I guess it has a similar property?
I don't know what I'm wrong with this because I'm new to this kind of topic. I would really appreciate it if you could guide me. Thank you
This is the graph from my simulation in LTspice XVII
This is the graph from the original one
I also wonder if anyone know what this (!) means?
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