Question

Given the circuit below with the following parameters: - M1: Vt,n = 0.48 V, Un Cox = 90 UA/V2, W/L = 10 um/4 um, VdD+Vad 1 = 0.01 [1/V] - Supply voltage: Vpp = 3.3 V, vad = 10 mV > R a. Find the value of resistor R so that the bias current is 10uA. (Hint: Channel length modulation should be considered.) Ipi M1 Use the resistor value in (a) for the following calculations: b. What configuration (connection) M1 is having? What region is it in? C. Find the transistor small-signal model parameters: gm, ro and roi. d. Find the expression and value for the small-signal transfer function (gain) of vo/vdd.

Answer 1

Givey - Kino Hoover, la Cox gou A/V; POD = 3.31 and Vad = lomy, Out/ve, W/= 10/4 ploot ledd ER For a transistor to be in Saturation vor VG.-Vt 50 from the transistor configuration, it will be always in saturation. I si en cox W ( VG-VEJ (1+ AWps). Toute X984 ( ) ( v. -0.42) (146."). 2 - ( Vo - 0.40)*( !+ ). Bu solving this for V. We gut V-0.4769, -99.99, 0,1 Ich this Vo=0.1169 - only pod at this Voltage only transistor N. - Vpp +udd -0.779 – Tour 3.31-0.7169 - R = R = 0.25311 Mar . o because only possible 0.7769 - - A - - 6 Source is grouded so this Configuration Called Common source configuration. Vesa VGs. It always tone. So this transistor will be in Saturation,

m = 12unex (W) = = y ex qou (1964) (101) = 10 ° (V xqxy 2%) = 67.087 Uv=90 so = 10 = 100 = lome .. For signal r, we we small have have to draw to draw model. uys to smugis m Di = (soll lam) So -14.767 Ks 0.01416 Mor = vos ♡ you g Our o udp it is a Voltage divider. 14.767k – Sy= Vo - NPI PAIDI 14.767280, 253M. 0.055ly =