5.7 The PMOS transistor shown in Fig. E5.7 has Vtp = –0.5 V, and , W/L = 10. Figure E5.7 (a) Find the range of vG for which the transistor conducts. (b) In terms of vG, find the range of vD for which the transistor operates in the triode region. (c) In terms of vG, find the range of vD for which the transistor operates in saturation. (d) Neglecting channel-length modulation (i.e., assuming λ = 0), find the values of |vOV | and vG and the corresponding range of vD to operate the transistor in the saturation mode with iD = 50 µA. (e) If λ = –0.2V–1, find the value of ro corresponding to the overdrive voltage determined in (d). (f) For λ = –0.2V–1 and for the value of vOV determined in (d), find iD at vD = +1 V and at vD = 0 V; hence, calculate the value of the apparent output resistance in saturation. Compare to the value found in (e). (a) vG ≤ + 1.3 V; (b) vD ≥ vG + 0.5; (c) vD ≤ VG + 0.5; (d) 0.32 V, 0.98 V, vD ≤ 1.48 V; (e) 100 kΩ; (f) 58 µA, 68 µA, 100 kΩ (same)