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Signal to Noise Ratio simulation in cadence

FormerMember
FormerMember

Dear Sir,

I am trying to find the signal to noise ratio at the output of my fully differential amplifier by using the Spectrum tool from the ADE after running the transient analyses, but it is giving me unexpected result. For the simulation I am applying Sin signal with full output range and the amplifier is buffer connected. 

therefore I would like to ask you please about the appropriate setup to measure the SNR at the output of the amplifier.

Thank you in advance

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