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2 Stage Op-amp CMFB Stability Analysis

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Shady Ahmed

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I am designing a 2 stage fully differential op-amps shown in the schematic:
Op Amp Schematic.png


The resulting Bode Plots are shown here (magnitude and phase of vo_2_r - vo_2_l):
Bodeplots.png


My question is about the stability analysis, what should i do regarding the CMFB circuit, i heard about the iprobe component , but i am not sure how should i use it.
 

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