EEE4306_Quiz_2_Solution_2011

EEE4306_Quiz_2_Solution_2011 - EEE 4306 QUIZ 11, 100 Points...

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Unformatted text preview: EEE 4306 QUIZ 11, 100 Points Namafl m‘ gwev 60 Minutes. Open Note, Open Book, 2/16/2011 UFID . BJT Parameters: VBEON E 0.7V [3 = 100, VA = 100000V. NMOS Parameters: VT = 1 V, 9» = 0.0001, M1 and M2: k = 16 mA/V2= 1/2unCox,(W/L), Circuit Element Values, R30“rce = 1.0 KQ, RF = 10 K9, RE = 1.3 KG, RD = 9 K 9, R3 = 250 9, RC = 5 K (2. (All MOS transistors are NMOS.) Please perform the feedback analysis for MIDBAND CIRCUIT OPERATION. Assume the biasing of the circuit works correctly. VSUPPLY = 10V RD E RD g RC 9b“; WVL ER” Q4 [Voo M3. _i: : D A. F 4 hall/Dc. Nn‘ X o~0.§\/p RSource 2.0 mA r EA 6 4v ’ vS1 small —_: 1 6, Signal /\/\/\/ 0 .(0V DC) :(OV DC) RF 1.0 mA® Feedback Topology: (5 points). Draw a single connection between Point X to either Point A or Point B so that the circuit has negative feedback. Biasing Calculati0n3: (20 points): Find the numerical values for the circuit elements/parameters below. Pick a value of km so that ID,M3= 2mA (the drain current through M3). (In MOS design, you can pick transistor W and L to set k, but that is not needed here!). Pick R133 so that Von“, Dc = 0V. Assume that no significant DC current flows through RF since DC Voutl = 0V DC V02 = 0V DC VG1 = 0V under the condition of negative feedback. Assume the NMOS transistors are in saturation operation and the NPNs are in forward active. VGSM?’ = /V-— — kM3= . R = HL—Q :2 l/Ttyrb :).5a/ D3 E / z/ i: V .— t/ l/ I = 0,; a...- /% 2 Wm IV % k : EL; a2?“ 01;; Find the open loop gain T (60 points) Find the closed loop gain Ac“ and the output resistance Rout] at Vout1(15 points). AC Voutl AO‘Q -ffl L1: “ “h .— r, V [‘7‘ l r + / S 371 I a; /2/‘/jL 1+6! Bonus: Estimate the output resistance and Gain at Voutz, (5 points). 3.80%sz fiflz ‘2 5kg T)(’20z)0L/) [1312 [0k +//>/l. -’ Irv wa _ CH (HSWQED 2 [7%]? «(Hgm , (egg-e RF 423W) 6%: WWt/V «c: /00MJ1(£+ (law/L «12351):— 1/{2 GJZ, "7 ' game ; SEJL/I(/+BD(‘[72GJZ>Z SkQ—Z/MTJL 2; WU), :2 33% Work Page 0g [2, alt/l. ,.__’————-—-——"_ ' -———-’T“'.""' UM i2-3/:/L ne'ka nee, ..,L\ a Ea ,{l‘imA/v ‘ZAR i 3Q X/fl,7>a :3} T'JZ/ K K V .— Xm A/l/ /,____ l2 3 l/k /k/2_ 77 04km) {x 0.03/3 ...
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EEE4306_Quiz_2_Solution_2011 - EEE 4306 QUIZ 11, 100 Points...

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