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A particular design of the wide-swing current mirror of Fig. 13.13(b) utilizes devices having W/L = 20, K1n = 400 μA/V2, and Vt = 0.45 V. For IREF = 90 μA, what value of VBIAS is needed? Also give the voltages that you expect to appear at all nodes and specify the minimum voltage allowable at the output terminal. If VA is specified to be 10 V, what is the output resistance of the mirror?

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