Common mode impedance and differnctial impedance!

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test_out

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Hi,

Can anyone explain the different bw common mode impedance and differntial impedance?

Thanks,
 

Thanks but,You may forgot to attach the file?
 

^.^
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these are the two voltages meaured between twol different point.
one voltage is taken between the positive and negative terminal of OPAMP. and the second relates to the volatages between the ground and positive terminal similarly between the negative and ground
 

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