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Figure 5 shows the circuit diagram for a two-stage amplifier. You may assume that the parameters are ß= 0.025 A/V², threshold voltage Vi = 0.6 V, and VA = 10 V for each transistor. For the capacitors, you can use the mid-band frequency range approximation. All other values are shown beside the schematic. (a) What kind of configuration is used for the 2 stages amplifier? (b) What kind of amplifier is M1 part of? and what about M2? (c) Calculate the DC IDs for Mi and M2.

Figure 5 shows the circuit diagram for a two-stage amplifier. You may assume that the parameters are ß= 0.025 A/V², threshold voltage Vi = 0.6 V, and VA = 10 V for each transistor. For the capacitors, you can use the mid-band frequency range approximation. All other values are shown beside the schematic. (a) What kind of configuration is used for the 2 stages amplifier? (b) What kind of amplifier is M1 part of? and what about M2? (c) Calculate the DC IDs for Mi and M2.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Q5 Figure 5 shows the circuit diagram for a two-stage amplifier. You may assume that the parameters are ß= 0.025 A/V², threshold voltage V1= 0.6 V, and VA = 10 V for each transistor. For the capacitors, you can use the mid-band frequency range approximation. All other values are shown beside the schematic. (а) What kind of configuration is used for the 2 stages amplifier? (b) What kind of amplifier is M1 part of? and what about M2? (c) Calculate the DC IDs for Mi 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 assumption. (e) (f) Determine the numerical values for: (i) Voltage gain of the entire amplifier. (ii) input resistance of the entire amplifier. Modify the circuit designing the amplifier to be more stable and resistant to NMOS component value variation changing the gain. Show the calculation and justify your choice. (g) VDD VDD = 2.5 V Rp2 R1 = 5 KW R1 Rp1 M2 HE Vout R2 = 5 KW M1 Cp2 Vin HH RD1 = 4 KW CG Rp2 = 4 KW Rsi = 4 KW R, Rs1 Cs1 Rs2 Cs2 Rs2 = 5 KW Vss = 0 V
Transcribed Image Text:Q5 Figure 5 shows the circuit diagram for a two-stage amplifier. You may assume that the parameters are ß= 0.025 A/V², threshold voltage V1= 0.6 V, and VA = 10 V for each transistor. For the capacitors, you can use the mid-band frequency range approximation. All other values are shown beside the schematic. (а) What kind of configuration is used for the 2 stages amplifier? (b) What kind of amplifier is M1 part of? and what about M2? (c) Calculate the DC IDs for Mi 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 assumption. (e) (f) Determine the numerical values for: (i) Voltage gain of the entire amplifier. (ii) input resistance of the entire amplifier. Modify the circuit designing the amplifier to be more stable and resistant to NMOS component value variation changing the gain. Show the calculation and justify your choice. (g) VDD VDD = 2.5 V Rp2 R1 = 5 KW R1 Rp1 M2 HE Vout R2 = 5 KW M1 Cp2 Vin HH RD1 = 4 KW CG Rp2 = 4 KW Rsi = 4 KW R, Rs1 Cs1 Rs2 Cs2 Rs2 = 5 KW Vss = 0 V
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