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Pole zero analysis - how to read values of poles and zeros

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arunsomanathan

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pole zero analysis

I did pole zero analysis in cadence for a two stage op amp? But I am not able to relate these pole and zero location with the magnitude and phase plot. Can someone let me know how to read those values of poles and zeros. Does it give the exact location of the poles.
 

ashish_chauhan

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Re: pole zero analysis

are you taking care of units for frequency ( radians or hertz)?
 

sutapanaki

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Re: pole zero analysis

Why don't you post your frequency response plots together with pole-zero results? It'll be easier.
 

soroosh_moallemi

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Re: pole zero analysis

you have to chnage the name of the input signal in the negative node of your OPAMP, and then see the amplitude and phase fo the circuit
 

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