Question: someone help me with this problem asap thank you ( - ) 1. (Fig.1) Let VDD-Vss-5 V, k-ka Vov4 VOV3-1 V. All transistors are matched.

someone help me with this problem asap thank you
( - ) 1. (Fig.1) Let VDD-Vss-5 V, k-ka Vov4 VOV3-1 V. All transistors are matched. Neglect channel-length modulation (25 pt). Briefly state the main role of the Q4-0s pair? (5 pt) VDD = 5V a. b. Briefly state the main role of the i-02 pair? (5 pt) G2 Ref c. Find the current IRef. (5 pt) 24 03 What is the input common-mode voltage (VCM VG2) range? For simplicity, let I IRef. (5 pt) d. Fig. 1 e. Now, if va is applied to Qi and Qz is grounded, what is the value of vid that causes Qi to conduct the entire current 1. (5 pt)
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