D8.6 The MOSFETs in the current mirror of Fig. 8.12(a) have equal channel lengths, μnCox = 400 µA/V2, and = 20 V/µm. If the input bias current is 100 µA, find W1, W2, L1, and L2 to obtain a short-circuit current gain that is ideally 5 A/A, an input resistance of 1 kΩ, and an output resistance of 40 kΩ. What is the expected percentage error in the current transfer ratio?
12.5 µm; 62.5 µm; 1 µm; 1 µm; and −0.5%