Question

Use constant voltage drop model for all diodes, Vr 7V Use V beon-.7V and β=50 for all BJTs Use the model parameters below for all MOSFETs: K'-1.073u, W 12, L 2u, V 1.73

Answer 1

" Given that, k_n� = 1.073 mu: w = 0.12: L = 2 mu v_t = 1.73 v For MOSFET M_1: g_m_1 = squareroot 2. I_D. k_n� .(w/L) = squareroot 2 times 1000 times 1.073 times 0.12/ 2 times 10^-6 g_m_1 = 11,347. 24 mu A /v g_m_1 = 11.34 mA/ v g_m 2 = squareroot 2 times I_D times k_n� times (w/L) = squareroot 2 times 25000 times 1.073 times 0.12/ 2 times 10^-6 = 57, 736 mu A/v g_m 2 = 57 mA/v \r\n R input implies 50 + (100 k) Vertical-bar Vertical-bar (100k) implies 450 + 50,000 ohm implies 50050 ohm R_in = 50,050 k ohm R_out = (r_o_2) Vertical-bar Vertical-bar 200 while r_0_2 is very - very high thus R_out iscongruentto 200 ohm overall G_v = [voltage Gain] small signal model [shorting all By pass & coupling capacitors] (let ""r_0"" of Mosfet is very - very high] \r\n small signal model: Now v_1 iscongruentto v_sig times 100k/ 100 k v_1 "