The op amp in this circuit is ideal except for an input bias

The op amp in this circuit is ideal except for an input bias current of 100nA in each of the input terminal Given C_1 = infinity design this circuit to meet the following specifications v_0=v_2-v_1 R_n = 1M ohm Minimum output offset voltage Provide values for R_1 R_2 and R_3

Solution

vo = v2 - v1

Rin = R2*R1/(R1 +R2) +R3= 1

v1- v2 / vo = (R1 + 1sC1)/R3