Figure 5 shows the circuit diagram for a two-stage amplifier. You may assur ie that B= 0.03 A/V?, Vi = 0.3 V, and VA = 10 V for each transistor and Cgs is negligibly small for both M, and M2. All other values are shown beside the schematic. (a) 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 %3D Rp2 R, = 4KW R1 R2 = 4KW RDI = 4KW Rp1 HE Pout Cp2 M2 M1 %3D Vin HE Rp2 = 4KW %3D Cg Rs1 = 4KW %3D R2 Rsi Csi Rs2 Rs2 = 6KW
Figure 5 shows the circuit diagram for a two-stage amplifier. You may assur ie that B= 0.03 A/V?, Vi = 0.3 V, and VA = 10 V for each transistor and Cgs is negligibly small for both M, and M2. All other values are shown beside the schematic. (a) 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 %3D Rp2 R, = 4KW R1 R2 = 4KW RDI = 4KW Rp1 HE Pout Cp2 M2 M1 %3D Vin HE Rp2 = 4KW %3D Cg Rs1 = 4KW %3D R2 Rsi Csi Rs2 Rs2 = 6KW
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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Do e and g?
Transcribed Image Text:Figure 5 shows the circuit diagram for a two-stage amplifier. You may assur ie that
B= 0.03 A/V², Vi = 0.3 V, and VA = 10 V for each transistor and Cgs is negligibly small
for both M1 and M2. All other values are shown beside the schematic.
Q5
(a)
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 M1 and M2.
(d)
Calculate gm and ro for M1 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:
(1i) 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
R1
= 4KW
R1
|RDI
R2 = 4KW
M2
out
Cp2
RD1
= 4KW
Vin
CG
Rp2 = 4KW
Rs1 = 4KW
%3D
Rsı
Rs2
R2
CsI
Rs2
= 6KW
Vss = 0 V
Figure 5
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