*8.87 For the Wilson current mirror of Fig. 8.37(a), show that the incremental input resistance seen by IREF is approximately 2VT/IREF. (Neglect the Early effect in this derivation and assume a signal ground at the output.) Evaluate Rin for IREF = 0.2 mA.
*8.87 For the Wilson current mirror of Fig. 8.37(a), show that the incremental input resistance seen by IREF is approximately 2VT/IREF. (Neglect the Early effect in this derivation and assume a signal ground at the output.) Evaluate Rin for IREF = 0.2 mA.
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