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Q5 Figure 5 shows the circuit diagram for a two-stage amplifier. You may assur e that

Q5 Figure 5 shows the circuit diagram for a two-stage amplifier. You may assur e that

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Q5 Figure 5 shows the circuit diagram for a two-stage amplifier. You may assur 1e that B= 0.03 A/V?, V:= 0.3 V, and VA = 10 V for each transistor and Ces is negligibly small for both M1 and M2. All other values are shown beside the schematic. (а) What kind of configuration is used for the two stages amplifier? (b) What kind of amplifier is M1 part of ? and what kind of amplifier is M2? (c) Calculate the DC IDs for Mi and M2. (d) Calculate gm and ro for Mi and M2. Draw the combined small-signal equivalent circuit suitable for mid band frequency analysis for the entire amplifier. State any assumptions. (e) (f) Determine the numerical values for: (i) Voltage gain of the entire amplifier. (ii) Output resistance of the entire amplifier. Modify the circuit, by just adding a single external component, to improve the overall voltage gain without increasing the output impedance. Justifv vour choice and state any assumptions. (g) VDD VDD = 2V Rp2 R = 4KW Rp1 Vout R2 = 4KW М Cp2 RD1 = 4KW Vin H Rp2 = 4KW CG Rs1 = 4KW R, Rs1 Csi Rs2 Rs2 = 6KW Vss = 0 V Figure 5
Transcribed Image Text:Q5 Figure 5 shows the circuit diagram for a two-stage amplifier. You may assur 1e that B= 0.03 A/V?, V:= 0.3 V, and VA = 10 V for each transistor and Ces is negligibly small for both M1 and M2. All other values are shown beside the schematic. (а) What kind of configuration is used for the two stages amplifier? (b) What kind of amplifier is M1 part of ? and what kind of amplifier is M2? (c) Calculate the DC IDs for Mi and M2. (d) Calculate gm and ro for Mi and M2. Draw the combined small-signal equivalent circuit suitable for mid band frequency analysis for the entire amplifier. State any assumptions. (e) (f) Determine the numerical values for: (i) Voltage gain of the entire amplifier. (ii) Output resistance of the entire amplifier. Modify the circuit, by just adding a single external component, to improve the overall voltage gain without increasing the output impedance. Justifv vour choice and state any assumptions. (g) VDD VDD = 2V Rp2 R = 4KW Rp1 Vout R2 = 4KW М Cp2 RD1 = 4KW Vin H Rp2 = 4KW CG Rs1 = 4KW R, Rs1 Csi Rs2 Rs2 = 6KW Vss = 0 V Figure 5
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