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s-parameter using LTspice

Thread Summary

The user is trying to generate S-parameters (.s2p file) for the LTC6419 using LTspice, specifically for differential output. The final answer suggests using the V(ref) option in the .NET command, such as '.net V(out[,ref]) ...', to correctly simulate the differential output and obtain accurate S11, S12, S21, and S22 data.
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Category: Software
Product Number: LTC6419
Software Version: LTspice ver 24.1.8


Hello

My customer want to get S-parameter (.s2p) for LTC6419, but there are no S-parameter.

So, I will try to have s2p file from LTspice simulation using .NET command.

However, I don't know the syntax in case of differential output, not single end output.


syntax ( singel end output)  syntax ;

.NET V(out) VIN Rin=50 Rout=50

When I use E1 component in order to change differential to single end, simulation result of S12 is -210dB.( please refer tp attached)


Would you please let me know the way to have simulation using .NET command in case differential output?

I want to have correct S11/S12/S21/S22 data in order to have s2p file.

Best Regards

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