Junus2012
Advanced Member level 5
Dear friends,
Is it possible to compensate the VOS by adjusting the common mode outout voltage VCM, suppose the op-amp with single supply operation 3.3 V and VCM = 1.65 V, but due to the offset I would connect 1.65+-dv, where dv is opposite to the offset voltage polarity.
The question in my mind that if we fix the VCM from output we still have it at the input, right ?
because VOS referred to the input = VOSI+VOSO/Gain
Is it possible to compensate the VOS by adjusting the common mode outout voltage VCM, suppose the op-amp with single supply operation 3.3 V and VCM = 1.65 V, but due to the offset I would connect 1.65+-dv, where dv is opposite to the offset voltage polarity.
The question in my mind that if we fix the VCM from output we still have it at the input, right ?
because VOS referred to the input = VOSI+VOSO/Gain