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Given the PMOSFET circuit below with: VTHP=900 mV and KPp= 40 uA/V² Calculate: VDD M1 5 a) The DC current in R1 L= 2u W = 30u P_tu VOFF =0 VAMPL = 2m FREQ = 1k Vout AC = 1 V2 R1 30k 3.8 b) The DC voltage Vout c) The small signal current in R1 d) The small signal voltage vout

Given the PMOSFET circuit below with: VTHP=900 mV and KPp= 40 uA/V² Calculate: VDD M1 5 a) The DC current in R1 L= 2u W = 30u P_tu VOFF =0 VAMPL = 2m FREQ = 1k Vout AC = 1 V2 R1 30k 3.8 b) The DC voltage Vout c) The small signal current in R1 d) The small signal voltage vout

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
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**Title: PMOSFET Circuit Analysis** **Introduction:** Given the PMOSFET circuit below with the parameters: - Threshold Voltage, \( V_{THP} = 900 \, \text{mV} \) - Transconductance Parameter, \( K_{P} = 40 \, \mu\text{A/V}^2 \) **Objectives:** Calculate: a) The DC current in \( R1 \) b) The DC voltage \( V_{out} \) c) The small signal current in \( R1 \) d) The small signal voltage \( v_{out} \) **Circuit Diagram Overview:** The diagram exhibits a PMOSFET-based circuit with the following components and values: - **PMOS Transistor (M1):** - Length \( L = 2 \, \mu\text{m} \) - Width \( W = 30 \, \mu\text{m} \) - **Power Supply \( V_{DD} \):** - Voltage = 5 V - **Resistance \( R1 \):** - Value = 30 kΩ - **Voltage Source (V3) Specifications:** - DC Offset (\( \text{VOFF} \)) = 0 - Amplitude (\( \text{VAMPL} \)) = 2 mV - Frequency (\( \text{FREQ} \)) = 1 kHz - AC Analysis: AC amplitude = 1 - **Node Voltages:** - \( Vout \): The node between the PMOS source and \( R1 \), where output voltage is measured. This setup is typically analyzed to understand the DC operating point as well as the small-signal behavior under the given conditions. The PMOS transistor works in the active region, where its source is higher than its drain, enabled by the voltage applied. **Further Analysis:** To solve the tasks, one must follow typical MOSFET analysis steps, accounting for both DC biasing and AC small-signal modeling. Each calculation will help deduce the behavior of the circuit such as current flows and voltage levels under stated conditions.
Transcribed Image Text:**Title: PMOSFET Circuit Analysis** **Introduction:** Given the PMOSFET circuit below with the parameters: - Threshold Voltage, \( V_{THP} = 900 \, \text{mV} \) - Transconductance Parameter, \( K_{P} = 40 \, \mu\text{A/V}^2 \) **Objectives:** Calculate: a) The DC current in \( R1 \) b) The DC voltage \( V_{out} \) c) The small signal current in \( R1 \) d) The small signal voltage \( v_{out} \) **Circuit Diagram Overview:** The diagram exhibits a PMOSFET-based circuit with the following components and values: - **PMOS Transistor (M1):** - Length \( L = 2 \, \mu\text{m} \) - Width \( W = 30 \, \mu\text{m} \) - **Power Supply \( V_{DD} \):** - Voltage = 5 V - **Resistance \( R1 \):** - Value = 30 kΩ - **Voltage Source (V3) Specifications:** - DC Offset (\( \text{VOFF} \)) = 0 - Amplitude (\( \text{VAMPL} \)) = 2 mV - Frequency (\( \text{FREQ} \)) = 1 kHz - AC Analysis: AC amplitude = 1 - **Node Voltages:** - \( Vout \): The node between the PMOS source and \( R1 \), where output voltage is measured. This setup is typically analyzed to understand the DC operating point as well as the small-signal behavior under the given conditions. The PMOS transistor works in the active region, where its source is higher than its drain, enabled by the voltage applied. **Further Analysis:** To solve the tasks, one must follow typical MOSFET analysis steps, accounting for both DC biasing and AC small-signal modeling. Each calculation will help deduce the behavior of the circuit such as current flows and voltage levels under stated conditions.
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