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UFID EEE 4306 QUIZ II, 100 Points 51/ 60 Minutes. Open Note, Open Book, 6/14/10 BJT Parameters: VBE_ON E 0.7V B = 100, VA = IOOOOOV. NMOS Parameters: VT = I V, k = l mA/V2 = VzunCox,(W/L) , )V = 0.00001 Circuit Element Values, RF = 1 [(0, R; = 200 Q, R5011rce = 1.2 KQ, R5; = 1K (2 R5 = 2.5 KS2 and R54 = 5 KS). Please perform the feedback analysis for MIDBAND
CIRCUIT OPERATION. Assume the biasing of the circuit works correctly. VSUPPLY = 12V M RC éRc I R93 Q4
R54 VNEG_SUPPLY = ‘5V 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 Calculation: (20 points): Find the numerical values for the circuit elements below. Pick, RC so that 103 = ImA (the current through M3). Pick R133 so that Ic4 = ImA.
Assume that no significant DC current ﬂows through RF since DC Voutl = DC V32 = DC
V31 = 0V under the condition of negative feedback. Assume the NMOS transistors are in
saturation operation and the NPNs are in forward active RczﬂJD—A VRC .. N
“ til: U ;\/ +E%;lmpl~ +H/
R133 3 12. 655 1, wk, in, AA) 2 l/
VI? " [473” Var; " 124?, :2\/ ALMA
5’ " ,— 4, I; .— I»,
3 awn/w, Dar—0v Veg ; 12v~ 2V
: IZV j0.7v pun/1a,;qu _ aH/
'; 3331/ Ia: [git—é ;al§m4
Qﬂ , 3/311; axe/L W 2: [CZ/UL
5/ [M ; ﬁnk; Find the open loop gain T (60 points) Find the closed loop gain AC“ and the output resistance Rout] at Vout,(15 points). A We W 5N
:33: Q 24’” 2;": [+7— 470§JL M6 _. Him ’ ...
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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.
- Fall '08