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Step of 6 8.022E Refer to Figure 7.16 in the text book. (a) Write the expression of the drain current. Determine the drain current of transistor I Step of 6 Equate drain currents of PMOS and NMOS transistors. (WIL), k, Simplify further. (WIL), 4 Thus, the relationship of to (WIL), is Step of 6 (b) To allow for the largest possible signal swing at the output terminal, the minimum required voltage across namely, or or 0.2 V. Thus, voltage across current source is 0.2 V If a peak to peak signal swing of 0.1 V is allowed at the drain of the highest dc bias voltage that can be used at the node is, 0.1 2 =1.8-0.2-0.05 = 1.55 V Thus, the minimum dc voltage required across current source for proper operation is 1.55 V Step of 6 (c) Determine the source to gate voltage of transistor =0.2-(-0.5) = 0.7 V Thus, the source to gate voltage of transistor is 0.7 V Determine the largest value to which gate of transistor used. =1.55-0.7 =0.85 V = Thus, the largest value of is 0.85 V Step of 6 (d) Determine the minimum required voltage across current source for proper operation. =0.4V Thus, the minimum dc voltage required across current-source I₂ for proper operation is 0.4 V Step of 6 (e) The minimum output voltage is equal to the minimum voltage across current source I₂ = V Determine the maximum output voltage. =0.85-(-0.5) Thus, the allowable range of signal swing at the output is 0.4 V to 1.35 V