Question

Using Vtn=2V and kn= 0.150V/A, find R2, Vs2, and Vg2 which equals Vg1.

2.1.1 Design the circuit of Figure 2 to yield an output current of 0.1 mA. 2.1.2 Use an equation that relates lo to IREF to design the Widlar mirror circuit i.e. find the value of R2. Refer to the material presented in the class regarding MOSFET Widlar current mirror. 2.1.4 Calculate the output impedance of Figure 2. 2.1.5 Find the value of Va , Vs2

Answer 1

sol VODI VODIESV 1 ŞR=2884.52 Iref Ireefa Ig2= olma SV Q2 QI vgi vgat gen 2 R2=?? Los Iref & Vrnite 1 oz (W/hz و (الا) Ires 3 Vg1= VDOI - Ivef R Vgi = 5- 0.1X16\x2.884x16 Ugla 4.97 V Vg2= vg1= 4.9710 for transistor Q2 Noe su in safiortion Vosa Vgs-Wth IP2 = kn ( V9A2 – Vene 0.1%103 = 150x15%( V952 – 2)2 Vg2-2 = Vgsa -25 0.0258 = 2.0258V

VS2 = Vg - . 2.0258 VS2 = 4.971-210258 V82= 2.9452 R2= VS2 Igz = 2.9452 2 oilma = 29.452 kn output i'mpedanu Roc de.