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Problem #1 - Common-Source Amplifier The NMOS common-source amplifier is shown below. The capacitors behave like open circuits at frequencies below the input signal frequency and short circuits at the design frequency. The bias circuit is shown to the right. Find the following values: Usig Usig Rsig = 200 ΚΩ O 00 HH RB1 10 ΜΩ Rin www |11 +15 V 5 ΜΩ 16 ΚΩ ∞0 00 7kΩ Ξ 16 ΚΩ (a) Find Vt of the MOSFET, if Vov = 0.3 V, and the drain current is Ip = 0.4 mA (b) Assuming 9m = 1.5 mA/V and ro = 300 kn, draw the small-signal equivalent circuit for the amplifier (shown below), showing all the correct values for the resistors. Rsig = 200 ΚΩ Vo Vgs 8mUgs Thrgani RB2 ro RD RL Ove Rin (c) Find Rin using the small-signal equivalent circuit. (d) Find R, using the small-signal equivalent circuit (do not include R₂) (e) Find the numerical ratios vgs/vsig and vo/Vsig using the small-signal equivalent circuit.

Problem #1 - Common-Source Amplifier The NMOS common-source amplifier is shown below. The capacitors behave like open circuits at frequencies below the input signal frequency and short circuits at the design frequency. The bias circuit is shown to the right. Find the following values: Usig Usig Rsig = 200 ΚΩ O 00 HH RB1 10 ΜΩ Rin www |11 +15 V 5 ΜΩ 16 ΚΩ ∞0 00 7kΩ Ξ 16 ΚΩ (a) Find Vt of the MOSFET, if Vov = 0.3 V, and the drain current is Ip = 0.4 mA (b) Assuming 9m = 1.5 mA/V and ro = 300 kn, draw the small-signal equivalent circuit for the amplifier (shown below), showing all the correct values for the resistors. Rsig = 200 ΚΩ Vo Vgs 8mUgs Thrgani RB2 ro RD RL Ove Rin (c) Find Rin using the small-signal equivalent circuit. (d) Find R, using the small-signal equivalent circuit (do not include R₂) (e) Find the numerical ratios vgs/vsig and vo/Vsig using the small-signal equivalent circuit.

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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Problem #1 - Common-Source Amplifier The NMOS common-source amplifier is shown below. The capacitors behave like open circuits at frequencies below the input signal frequency and short circuits at the design frequency. The bias circuit is shown to the right. Find the following values: Usig Rsig Usig = Rsig = 200 ΚΩ = 200 ΚΩ O RB1 00 10 ΜΩ Rin Ves RB2 www11 Vgs + 15 V (a) Find Ve of the MOSFET, if Vov = 0.3 V, and the drain current is Ip = 0.4 mA (b) Assuming 9m 1.5 mA/V and ro = 300 kn, draw the small-signal equivalent circuit for the amplifier (shown below), showing all the correct values for the resistors. 5 ΜΩ 16 ΚΩ ∞o 00 7kΩ Ξ 8mUgs -0% ro 16 ΚΩ RD RL Vo Rin (c) Find Rin using the small-signal equivalent circuit. (d) Find Re using the small-signal equivalent circuit (do not include R₂) (e) Find the numerical ratios vgs/Vsig and v₁/vsig using the small-signal equivalent circuit.
Transcribed Image Text:Problem #1 - Common-Source Amplifier The NMOS common-source amplifier is shown below. The capacitors behave like open circuits at frequencies below the input signal frequency and short circuits at the design frequency. The bias circuit is shown to the right. Find the following values: Usig Rsig Usig = Rsig = 200 ΚΩ = 200 ΚΩ O RB1 00 10 ΜΩ Rin Ves RB2 www11 Vgs + 15 V (a) Find Ve of the MOSFET, if Vov = 0.3 V, and the drain current is Ip = 0.4 mA (b) Assuming 9m 1.5 mA/V and ro = 300 kn, draw the small-signal equivalent circuit for the amplifier (shown below), showing all the correct values for the resistors. 5 ΜΩ 16 ΚΩ ∞o 00 7kΩ Ξ 8mUgs -0% ro 16 ΚΩ RD RL Vo Rin (c) Find Rin using the small-signal equivalent circuit. (d) Find Re using the small-signal equivalent circuit (do not include R₂) (e) Find the numerical ratios vgs/Vsig and v₁/vsig using the small-signal equivalent circuit.
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