13.36 For the circuit in Fig. 13.12, assume that all transistors are operating at equal overdrive voltages of 0.15-V magnitude and have |Vt| = 0.45 V and that VDD = VSS = 1V. Find (a) the range over which the NMOS input stage operates, (b) the range over which the PMOS input stage operates, (c) the range over which both operate (the overlap range), and (d) the input common-mode range. Assume that all current sources require a minimum voltage of |VOV| to operate properly.
(a) −0.25 V ≤ VICM + 1.3 V; (b) −1.3 V ≤ VICM + 0.25 V; (c) −0.25 V ≤ VICM + 0.25 V; (d) −1.3 V ≤ VICM + 1.3 V