5.106 For the circuit in Fig. 5.55 (a) with I = 0.2 mA, RG = 0, RD = 1

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5.106 For the circuit in Fig. 5.55 (a) with I = 0.2 mA, RG = 0, RD = 10 kΩ, and VDD = 2.5 V, consider the behavior in each of the following two cases. In each case, find the voltages VS, VD, and VDS that result. (a) Vt = 1 V and kn = 1.6 mA/v2 (b) Vt = 0.8 V and kn = 1.25 mA/V2

5.106 For the circuit in Fig. 5.55 (a) with I = 0.2 mA, RG = 0, RD = 10 kΩ, and VDD = 2.5 V, consider the behavior in each of the following two cases. In each case, find the voltages VS, VD, and VDS that result. (a) Vt = 1 V and kn = 1.6 mA/v2 (b) Vt = 0.8 V and kn = 1.25 mA/V2

5.106 For the circuit in Fig. 5.55 (a) with I = 0.2 mA, RG = 0, RD = 10 kΩ, and VDD = 2.5 V, consider the behavior in each of the following two cases. In each case, find the voltages VS, VD, and VDS that result. (a) Vt = 1 V and kn = 1.6 mA/v2 (b) Vt = 0.8 V and kn = 1.25 mA/V2

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5.106 For the circuit in Fig. 5.55 (a) with

I = 0.2 m A, R_{G} = 0

,

R_{D} = 10 k Ω

, and

V_{D D} = 2.5 V

, consider the behavior in each of the following two cases. In each case, find the voltages

V_{s}

,

V_{D}

, and

V_{D S}

that result. (a)

V_{t} = 1 V

and

k_{n} = 1.6 m A / v^{2}

(b)

V_{1} = 0.8 V

and

k_{n} = 1.25 m A / V^{2}

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D 7.98 Design the circuit in Fig. P7.98 so that the transistor operates in saturation with VD biased 1 V from the edge of the triode region, with ID = 1 mA and VD = 3 V, for each of the following two devices (use a 10-μA current in the voltage divider): (a) |Vt| = 1 V and kp'W/L = 0.5 mA/V2 (b) |Vt| = 2 V and kp'W/L = 1.25 mA/V2 For each case, specify the values of VG, VD, VS , R1, R2, RS , and RD.

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