Consider the NMOS current mirror depicted in Fig. P9.23. You may assume that is in active mode, and that the load connected to has a much lower impedance than the mirror’s output impedance. Find an expression for the current noise spectral density that appears superimposed upon the dc current in terms of the value of C and all device and small-signal model parameters for and . (You may neglect all other parasitic capacitors in the circuit.)
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