Fig. 21 shows a telescopic-cascode op amp. Assume that |Vov

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Fig. 21 shows a telescopic-cascode op amp. Assume that |Vov | of all transistor is 0.3 V, threshold voltages Vtm = 0.7 V, |Vtp| = 0.8 V and VDD = 3.3 V. (a) Find the input common-mode ranges. (b) Assume that all inputs are biased at 1.65 V, please find the output swings. Fig. 21

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Fig. 21 shows a telescopic-cascode op amp. Assume that $| V_{ov} |$ of all transistor is $0.3 V$ , threshold voltages $V_{t m} = 0.7 V, | V_{t p} | = 0.8 V$ and $V_{D D} = 3.3 V$ . (a) Find the input common-mode ranges. (b) Assume that all inputs are biased at $1.65 V$ , please find the output swings. Fig. 21