EEE4306_Quiz_2_Solution_2010

EEE4306_Quiz_2_Solution_2010 - EEE 4306 QUIZ 11, 100 Points...

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Unformatted text preview: EEE 4306 QUIZ 11, 100 Points Name: A" 5 WW 60 Minutes. Open Note, Open Book, 2/ 12/ 10 UFID . BJT Parametersi VBEON 5 0.7V B = 200, VA = 200V. NMOS Parameters: VT 2 1 V, k = 20 mA/V2 = l/2/,LnCox(W/L) , X = 0.0001 (r0 NMOS very high) ' 3 Circuit Element Values, R]: = 50K S2, R51 2 5K 9., RC1 = 20K £2. Please perform the feedback analysis for MIDBAND CIRCUIT OPERATION. Assume the biasing of the circuit works correctly. M05 WSW/V40? 61% VSUPPLY=10V “361i: r662zl “[3,: rfr‘QZ— + [a ? VNEG_SUPPLY = 5V ‘ n 0 Biasing Calculation: (2 oints): Find the numerical values for the circuit elements I“ x below. Pick, RD and R2 so that Q1: V31 =2.0V DC and Q2: ch = 0V DC. Assume the {E}: g M NMOS transistors are in saturation operation and the PNPs are in forward active 61 RD; Varka . ' R0 : ’22”; : Zm/uz 0769;? 5mUL R2: . m _,;~ 9» zw ' V— wa/L Find the open loop gainT (60 points) [0% A’ q- \ T74: «15' 9"“43 “r “1752/1 x ’UZQI (L 022 + / h (l. ’mzmtfféa) ’13-. 2 9%1‘ “2'69 H 9F”? * HMA/v 2[ 1%“:‘4, H ‘89) 9kg ,. ‘ {me/2. WQL R9, 4— RI, ng/f‘ Y‘DM 2—i- : :1"? "/ a AI‘D ID'Z/VD Egg“ .L{R1)r+grellr 'rmM/M 4J5 — 9M4 2 p Ir, 1 M, I “' :VM’i/x':(‘ffi7¢/2H50E*50k> =57 '77: 92 x.o‘7/x 57 = 270 Find the closed loop gain ACLl and the output resistance Routl at V0ut1(15 points). Vout ,_ ADO ACLI: I v M :— Vm 1+ 707 /+ /27c> ROW]: 9; “GEN/€55” V0632, 1 + ’7” :— 5’0 mil 5’5’le/IZMJL (ff 1 + 270 : 7 7]; Is Voutz in linear-active mode? Estimate the gain at Voutz, (5 points). 2 I ' " , ) ACLZZVonz ) YgS/ Vc‘ : mag/9ka s : 2V ’ VcE = $.7V 9m52’ = ’ 3M 6% V5, : 2v I 2 o VOLJZ wag}, : ’97”ch RL'EQ’ v __ Ail. AC, V0 1/ ,, ' 2W.- , . 20km. ’UHJL + MQLQECQL «4L- ? {my}? ...
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EEE4306_Quiz_2_Solution_2010 - EEE 4306 QUIZ 11, 100 Points...

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