How remove DC in output?

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khorramrouz

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Hi All
I designed an OTA which called Recycling folded cascode.a Dc voltage in output nodes
degrades the swing.as i use a dual power i want the Dc be Zero. thanks for yiur idea
 

whold you please explain more .do you mean of dual power two supplies (vdd & vss )? if so, you have to design your circuit in such a way that the output common mode level becomes zero not to remove it.
 
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yes the output node voltage should be zero but in my design with vdd=1 and vss=-1 , the dc voltage is 416mv and possitive swing will be cuted

n IC design i think use of capacitor effects on size and freq. respons
 
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