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Consider the circuit shown below of a common source amplifier with a current mirror bias. Find the following: a. Find kp and kn. b. Find the drain current of M2 given that IBIAS = 2mA and Vout = 2.5V. c. Find the gm and ro of transistor M1.

Consider the circuit shown below of a common source amplifier with a current mirror bias. Find the following: a. Find kp and kn. b. Find the drain current of M2 given that IBIAS = 2mA and Vout = 2.5V. c. Find the gm and ro of transistor M1.

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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Consider the circuit shown below of a common source amplifier with a current mirror bias. Find the following: a. Find kp and kn. b. Find the drain current of M2 given that IBIAS = 2mA and VouT = 2.5V. c. Find the gm and r. of transistor M1. d. Sketch the small signal model of transistor M3 (Hint: Is there any small signal in any terminal of M3? If yes, then where is it? If no, then what happens to the small signal model?). It is given that the NMOS (M1) parameters are H,Con = 3mA/V? , VTH,n = 0.5V and A = 0.02 and the PMOS (M2 and M3) parameters are µ.Cox = 1mA/V? and VTH,p = -0.6V. The PMOS transistor M3 does not have channel length modulation while PMOS transistor M2 has A = 0.02. It is also given that the dimensions of M2 and M3 have equal widths of 5µm and lengths of L2 = 3µm and L3 = 1.5µm, respectively. M1 has length of L1 = 1µm and width of W1 = 2µm. 5V 5V M3 M2 VOUT VIN M1 IBIAS
Transcribed Image Text:Consider the circuit shown below of a common source amplifier with a current mirror bias. Find the following: a. Find kp and kn. b. Find the drain current of M2 given that IBIAS = 2mA and VouT = 2.5V. c. Find the gm and r. of transistor M1. d. Sketch the small signal model of transistor M3 (Hint: Is there any small signal in any terminal of M3? If yes, then where is it? If no, then what happens to the small signal model?). It is given that the NMOS (M1) parameters are H,Con = 3mA/V? , VTH,n = 0.5V and A = 0.02 and the PMOS (M2 and M3) parameters are µ.Cox = 1mA/V? and VTH,p = -0.6V. The PMOS transistor M3 does not have channel length modulation while PMOS transistor M2 has A = 0.02. It is also given that the dimensions of M2 and M3 have equal widths of 5µm and lengths of L2 = 3µm and L3 = 1.5µm, respectively. M1 has length of L1 = 1µm and width of W1 = 2µm. 5V 5V M3 M2 VOUT VIN M1 IBIAS
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