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Hspice curve fitting optimization

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Analogstudent

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Hello all,

Is there anyone out there who has used, the curve fitting optimization in HSpice?
I have designed a circuit that has 6 bias parameters.
The circuit outputs for different input frequencies should fit a given curve by optimizing those 6 parameters. I found something on this webpage which is just similar to HSpice manual:

**broken link removed**

but I couldn't find any real example for curve fitting optimization.

I would be quite thankful if you can help me with this problem.

Analogstudent
 

I also want to know more examples about it, but cannot find. I am trying to use this curve fitting optimization, but fail.
 

zhuchor said:
I also want to know more examples about it, but cannot find. I am trying to use this curve fitting optimization, but fail.
Click to expand...

The link in the original post is broken. Can you refer to a chapter in the hspice manual that describes what you think of? I know the optimizer for .measure statements. It is useful for example to measure setup time in flipflops, but not to optimize circuits. A real circuit optimizer has to consider multiple corners, measurements, testbenches, ... at once simultaneously.
 

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