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Using XF function in Spectre to measure the PSRR of an amplifier

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surianova

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hi all!

i use XF function in spectre to measure the PSRR of a fully differential amplifier. But for positive and negative output node, is it just put diffrential signal like out1 and out2? or choose either out1 or out2 for positive output node and gnd for negative output node?
 

Re: XF

For single port psrr, choose out1 or out2 as pos node and gnd as neg node;
For differential port psrr, choose out1 and out2 as pos and neg node.
 
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