By introducing R3 in series with the noninverting input lead, we can reduce the value of the output dc voltage due to the input bias currents. From a signal point of view, R3 has negligible effect (ideally no effect).
By introducing R3 in series with the noninverting input lead, we can reduce the value of the output dc voltage due to the input bias currents. From a signal point of view, R3 has negligible effect (ideally no effect).