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Q7. Assume that the AC small signal parameters of the BJT are gm,Q1, rπ,Q1, ro,Q1, βQ1, and the AC small signal parameters of the MOSFETs are gm,Mi, gmb,Mi, ro,Mi, where i = 1, 2. Write down the expressions for the small signal AC equivalent resistance (Rx) of each of the following circuit configurations: (a) Fig. Q7 a (b) Fig. Q7 b

Q7. Assume that the AC small signal parameters of the BJT are gm,Q1, rπ,Q1, ro,Q1, βQ1, and the AC small signal parameters of the MOSFETs are gm,Mi, gmb,Mi, ro,Mi, where i = 1, 2. Write down the expressions for the small signal AC equivalent resistance (Rx) of each of the following circuit configurations: (a) Fig. Q7 a (b) Fig. Q7 bQ7. Assume that the AC small signal parameters of the BJT are gm,Q1, rπ,Q1, ro,Q1, βQ1, and the AC small signal parameters of the MOSFETs are gm,Mi, gmb,Mi, ro,Mi, where i = 1, 2. Write down the expressions for the small signal AC equivalent resistance (Rx) of each of the following circuit configurations: (a) Fig. Q7 a (b) Fig. Q7 b

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Q7. Assume that the A C small signal parameters of the BJT are g m , Q l , r π Q l , r o , Q l , β Q l , and the AC small signal parameters of the MOSFETs are g m , M i g m b , M i , r 0 , M i , where i = 1 , 2 . Write down the expressions for the small signal A C equivalent resistance ( R x ) of each of the following circuit configurations: (a) Fig. Q7a
(b) Fig. Q7b

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