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The circuit below has a voltage gain of 10 with W/L = 20/0.18. Determine the required value of Rd if the power dissipation must not exceed 1mW

The circuit below has a voltage gain of 10 with W/L = 20/0.18. Determine the required value of Rd if the power dissipation must not exceed 1mW

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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The circuit below has a voltage gain of 10 with W/L = 20/0.18. Determine the required value of Rd if the power dissipation must not exceed 1mW

The image depicts a basic NMOS (N-Channel Metal-Oxide-Semiconductor) transistor circuit used for amplification or switching applications. Here's a detailed explanation of the components and their connections: 1. **NMOS Transistor:** - The main component in the circuit is an NMOS transistor, represented by a symbol with a gate (left horizontal line), source (bottom vertical line), and drain (top vertical line). 2. **Gate Terminal (Vi):** - The input voltage \( V_i \) is applied to the gate terminal of the transistor. This voltage controls the conductivity between the drain and source. 3. **Drain Terminal (Vo):** - The drain terminal is connected to an output voltage \( V_o \). 4. **Resistor (RD):** - A resistor, labeled \( R_D \), is connected in series with the drain terminal. It is connected to a supply voltage of 1.8 V at its other end. This setup helps determine the operating point of the transistor. 5. **Source Terminal (Ground):** - The source terminal is connected to the ground, completing the circuit. ### Operation: - The transistor conducts between the drain and source terminals based on the voltage applied to the gate. When \( V_i \) exceeds a certain threshold, it allows current to flow from the 1.8 V supply through \( R_D \), affecting the output voltage \( V_o \). This circuit can function as a switch or amplify small signals applied to the gate. This simple circuit is foundational in understanding digital electronics and serves as a building block in integrated circuits (ICs).
Transcribed Image Text:The image depicts a basic NMOS (N-Channel Metal-Oxide-Semiconductor) transistor circuit used for amplification or switching applications. Here's a detailed explanation of the components and their connections: 1. **NMOS Transistor:** - The main component in the circuit is an NMOS transistor, represented by a symbol with a gate (left horizontal line), source (bottom vertical line), and drain (top vertical line). 2. **Gate Terminal (Vi):** - The input voltage \( V_i \) is applied to the gate terminal of the transistor. This voltage controls the conductivity between the drain and source. 3. **Drain Terminal (Vo):** - The drain terminal is connected to an output voltage \( V_o \). 4. **Resistor (RD):** - A resistor, labeled \( R_D \), is connected in series with the drain terminal. It is connected to a supply voltage of 1.8 V at its other end. This setup helps determine the operating point of the transistor. 5. **Source Terminal (Ground):** - The source terminal is connected to the ground, completing the circuit. ### Operation: - The transistor conducts between the drain and source terminals based on the voltage applied to the gate. When \( V_i \) exceeds a certain threshold, it allows current to flow from the 1.8 V supply through \( R_D \), affecting the output voltage \( V_o \). This circuit can function as a switch or amplify small signals applied to the gate. This simple circuit is foundational in understanding digital electronics and serves as a building block in integrated circuits (ICs).
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