hi solve MOSFET problem 1 4.49 Consider the CS amplifier of Fig. 4.26(a) for the case Von
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hi solve MOSFET problem 1
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4.49 Consider the CS amplifier of Fig. 4.26(a) for the case Von =5 V, R, = 24 k2, k(W/L) = 1 mA/v?, and V, = 1 V. (a) Find the coordinates of the twoend points of the saturation- region segment of the amplifier transfer characteristic, that is, points A and B on the sketch of Fig. 4.26(c). (b) If the amplifier is biased to operate with an overdrive voltage Voy of 0.5 V, find the coordinates of the bias point Q on the transfer characteristic. Also, find the value of Ip and of the incremental gain A, at the bias point. (c) For the situation in (b), and disregarding the distortion caused by the MOSFET's square-law characteristic, what is the largest amplitude of a sine-wave voltage signal that can be applied at the input while the transistor remains in saturation? What is the amplitude of the output voltage signal that results? What gain value does the combination of these ampli- tudes imply? By what percentage is this gain value different from the incremental gain value calculated above? Why is there a difference? 4.49 Consider the CS amplifier of Fig. 4.26(a) for the case Von =5 V, R, = 24 k2, k(W/L) = 1 mA/v?, and V, = 1 V. (a) Find the coordinates of the twoend points of the saturation- region segment of the amplifier transfer characteristic, that is, points A and B on the sketch of Fig. 4.26(c). (b) If the amplifier is biased to operate with an overdrive voltage Voy of 0.5 V, find the coordinates of the bias point Q on the transfer characteristic. Also, find the value of Ip and of the incremental gain A, at the bias point. (c) For the situation in (b), and disregarding the distortion caused by the MOSFET's square-law characteristic, what is the largest amplitude of a sine-wave voltage signal that can be applied at the input while the transistor remains in saturation? What is the amplitude of the output voltage signal that results? What gain value does the combination of these ampli- tudes imply? By what percentage is this gain value different from the incremental gain value calculated above? Why is there a difference?
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