Consider the following multistage amplifier circuit. a) For Q3 calculate the Q point and the small signal parameters (Sm

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Consider The Following Multistage Amplifier Circuit A For Q3 Calculate The Q Point And The Small Signal Parameters Sm 1 (149.42 KiB) Viewed 67 times

Consider the following multistage amplifier circuit. a) For Q3 calculate the Q point and the small signal parameters (Sm, Ix, ro). [10] For the following sections use values given below: Imm1=15 mA/V, romi= 50 kN2, 8mQ2=80 mA/V, gmQ3=100 mA/V, 102–202, Q2=5 k-2, ΓοQ2-75 ΚΩ, reg2=10Ω, ΓπQ3=10 ΚΩ, ΓεQs=15Ω, ΓοQ3-80 ΚΩ b) Draw the small-signal equivalent circuitry of this amplifier. [10] c) Using the principle of superposition, derive expressions first and then calculate the low frequency break points associated with each capacitor and indicate the capacitor that is dominant in determining f. [10] d) What is the resulting low frequency f, of the whole multistage amplifier? [5] Voc-15V MI: k-20 mA/V? Ro V-2 V HE VX-50 v HE W/L-10 HE IuF 22 F Q2: 0.01 uF RESU RB-120, VX-200 C 33 HF Q3: B3-75, V=100 V VBE(FA) 0.7 V, VBE(SAT) 0.8 V VCE(SAT) 0.2 V VBC(RA) 0.7 V, Br-2, VT-25 mV R R 91 C 0 MF R 120 RO IMO R 222 R 200 R 16 47