Question

AutoSave OCH H File Home Search Help 0 X Comments Insert View E CEN 325 HW 7 - F19 (1) - Swed Draw Design Layout References Mailings Review Cambria (Hendin 11 A A Aa A BIU XX A 2-A Aricl McClain AM - Share Orind AaBbc Od AaBbceDd AaBbc AaBbce AaB AaBb CD Außbod Aubbed Replace 1 Normal 1 No Spac_ Heading 1 Heading 2 Title Subtitle Subtle Em Emphasis Dictate Select LL 21 Copy - - Format Painter clipboard Paragraph Styles Editing Problem 4. (20 points) Consider the BiCMOS amplifier shown below. The BJT has lor=0.7 and 8 = 100. The MOSFET M, Is the same one used in lab 11. a Find the dc bias currents in M. and Q and show that they are approximately 100 ud and 1 m/, respectively b. Evaluale the small-signal parameters of M, and Qz at their bias points. C. Neglecting R, find the voltage gain 4,1 = d. Including Refind the voltage gain A2 - e. Find the input and output resistance f Calculate the for C and C such that the input and output poles are at 10 kHz. Voo L 10V 100k 10MO 11ko Vot 62 2k Hiu EX Dos FA - Page 4 of 337 words i po e NT ^ D o = 95% 9:04 PM 11/23/2019

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Answer 1

In given numorical no qrosent toough RG. Hence ve=ve where VG = gate current vea collector allment. > VBE = 0.74 , Ve=0 · Vp = 0.7V. Id = drain current = vs = 872 102 ~ 1804A Now, Ida (knx W) 2x(VGs-ut) bap of 100ml = (knxw) 2(045 V.)? By solving above eq". 1 vas= 1.316 v .: VG= 1.316 + V5 = 2v. TIe = sve = suvar = 1MA. I Ice Collecter 5-V Cr IMA cim. 5.VC IC 3 IC collector Tez Emitter Ic IE * Yes 26 mV - 2cm= 26 ohm. gma [2xkn x W x 11]" gm ie. Granin margin = 0.63 MAIN * Negleting Re Vo = -(RCIIRL) Bgm XV ta Bare 76.8+1+gm *Arre

V = - 23.25 € - Ro=RG 412 km Ki -xvo X Tot Rain Ro (Rot ReIIRL) Hence, vor Vs (R1+200)* 10 ^ vi - 412 x 10 W (-23.25) (512) Team 18.7