Question

q. what will be the current flowing across diode d1 and d2? 1. id1 = 1.5 a id2 = 0 a 2. id1 = 0 a id2 = 0 a 3. id1 = 0.275 a id2 = 0.275 a 4. id1 = 1.5 a id2 = 1.5 a

Answer 1

Q:Shown in the circuit is a voltage divider implemented with two diode-connected nMOSFETs. Let both FETs have Vt=0.5 V, k' = 50 microA/V2, =0 and =0. (a) If VDD= 5 V, specify suitable W/L ratios for M1 and M2 so that the circuit gives V=2.5 Vwhile drawing I=25 microA from VDD. (b) Repeat, but for V=1.5 V and I=10 microA. (c) If (W/L)1 = (1 micro m)/(1 micro m), specify (W/L)2 so that V = 3 V; let the smaller of W and L in (W/L)2 be 1 micro m