EEE4306_Quiz_2_Solution_2009

# EEE4306_Quiz_2_Solution_2009 - EEE 4306 QUIZ II 100 Points...

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Unformatted text preview: EEE 4306 QUIZ II, 100 Points Name: 145' W IV 60 Minutes. Open Note, Open Book, 6/19/09 UFID . BJT Parameters: VBBON 5 0.7V B = 100, VA = 100V. NMOS Parameters: VT = 1 V, k = 4mA/V2= 1/2unCox(W/L) , k = 0.0001 (ro NMOS very high) Circuit Element Values, RX = 8K Q, RF = 4.5K Q, R5 = 1.5K Q, BJT base-emitter. Please perform the feedback analysis for MIDBAND CIRCUIT OPERATION. Assume the biasing of the circuit works correctly. VSUPPLY = 12V 03: : m: R RX M 6m 7 D C V’B I 2.. v7 ’51», Mi. AM M2 Vout2 ~ - 12V : z/mA/v ~9m,:9mz I / a £5 0J1. Q2 6 x °° 100 100 1 5v D _ leJL V r - 4?. M1 A i a/Mas , cool—Auxi- I v , I 5 T7,. ' ‘ '/ 2mA o r 1 0, 0L5 @ V4 I am, I c 4:. A - * = V sma e nal . out — LSJL _l_ S I 9 W» 1 I" \/ PVLﬁfG? 1.5voc ’4 RS Y RF 1‘0 a 2K5 k‘D— f0 = ’DO/mﬂ = /Dof<JL VSUPPLY ‘ '1-5V Biasing Calculation: (20 points): Find the numerical values for the circuit elements below. Pick, RD and RC so that Q1 VB =1.5V, M2 VG =1 .5V and Im = 102 = 1mA.‘ Assume the NMOS transistors are in saturation operation. 2 —_— Iz—Lg/ __ mju ” “\$5.26 RD= [ﬁxgtJL . 0 mar ’zmk “ J1 RC: /0,7£JL , /a_ : /ZV“ /'5/_ Kzi‘jsfasté/L I; I‘M/(y — {wt/f Find the open loop gain T (60 points) Um : 8m] [RD V‘s/M05 [PT+Q./00+{3>,/DD +(gfezj7 "fmA/V MEI: mxm 25/; loft ml: Qj/C/L \r = ﬂ “’N V ‘ 12 II I” . \/ B ‘ang‘T‘ . C. OIBW‘ 7"” z, (er/t/L lib/L It; A’— __ /2 + -'~ ll . V0072 " F SM‘ [as ’L V5 : ﬁfi’f V3 .L ﬂ’: + ﬁmr/[ﬂ5> +7”); CLSkQ 2;pr Lyle/L 250/2. git 1’ £5 VomLL I 25311” /,3£L(Vou¥,)= 1/7,“ [1 I23 +' kl: Zfa/LY/ﬂfé/L'f‘ ifé/L ,- 0- 645 V0071 U M l ﬁé c; zq/gxﬁqz)x[.07‘0[0¢5) X ’- "Uk [If (Ur; Debt 1; ’55 7 Find the closed loop gain AC” and the output resistance Rout] at Vout1(15 points). A00 3 [1L RF ., AC _V0utl L/ Mi 2: /92 4),,4 g “ Vs ’ H M 25‘!) mac 15k 1? ’ ’7K ROI/[t]: ______,. > : . 9mzl/(2F *ﬁs 97W 1 RF 61 W I + . 53 {85 :. bfrBJZ. ' Estimate the gain at Voutz (5 points). ( (p/t‘C (£2 ) ﬁgwj {fa/MM .( «(ﬂaw/d Zﬂ/‘S .. d P ACLZ : Vivutz F raw! ésb 2 422a}: :: — asl/ex :z'c/Z RX (52 _: [2/0ij W 5, “3 + RF— ”;sz 03% N x “02% Cain/{3+8}: '3 “L?- __ Wow [9 '“ <3sz 1r -- x . x ._ .~ , . ~ —-\ ~— 5 (UB aﬁLIZKSTE/zﬁ 34ng/u é>v/V ...
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## This note was uploaded on 02/12/2012 for the course EEE 4306 taught by Professor Eisenstadt during the Fall '08 term at University of Florida.

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EEE4306_Quiz_2_Solution_2009 - EEE 4306 QUIZ II 100 Points...

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