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oVo Rz 3 R4 R3 For the op amp cúrcuit shown: is Find the voltage gain Vo/Vi" ii) Select the resistor values such that the voltage gain equals 25.

oVo Rz 3 R4 R3 For the op amp cúrcuit shown: is Find the voltage gain Vo/Vi" ii) Select the resistor values such that the voltage gain equals 25.

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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**Operational Amplifier Circuit Analysis** **Figure: Operational Amplifier Circuit Diagram** This diagram features an operational amplifier (op-amp) circuit with four resistors (R1, R2, R3, R4) and an input voltage \(V_i\). The circuit is designed to determine the voltage gain and to select resistor values for a specific gain. **Objectives:** 1. **Find the Voltage Gain \(V_o/V_i\):** - Identify the relationship between the output voltage (\(V_o\)) and the input voltage (\(V_i\)). - Compute the voltage gain by analyzing the circuit components and their configurations. 2. **Select the Resistor Values such that the Voltage Gain Equals 25:** - Determine the specific values for resistors \(R1\), \(R2\), \(R3\), and \(R4\) to achieve a voltage gain of 25. - Use appropriate formulas and circuit analysis techniques to find these values. **Explanation of the Circuit Diagram:** - The input voltage \(V_i\) is applied through resistor \(R1\), which is connected to the inverting input (-) of the op-amp. - Resistor \(R2\) is connected between the inverting input and the ground. - Resistor \(R4\) is connected between the output \((V_o)\) and the inverting input. - Resistor \(R3\) connects the output of the first op-amp to the non-inverting input (+) of a second op-amp which is grounded. This configuration is typical of a dual-stage op-amp circuit aimed at providing specific amplification of the input signal. The resistors' values are critical in determining the overall gain of the circuit. By following the steps mentioned in the objectives, students will be able to analyze the circuit and compute the desired output efficiently.
Transcribed Image Text:**Operational Amplifier Circuit Analysis** **Figure: Operational Amplifier Circuit Diagram** This diagram features an operational amplifier (op-amp) circuit with four resistors (R1, R2, R3, R4) and an input voltage \(V_i\). The circuit is designed to determine the voltage gain and to select resistor values for a specific gain. **Objectives:** 1. **Find the Voltage Gain \(V_o/V_i\):** - Identify the relationship between the output voltage (\(V_o\)) and the input voltage (\(V_i\)). - Compute the voltage gain by analyzing the circuit components and their configurations. 2. **Select the Resistor Values such that the Voltage Gain Equals 25:** - Determine the specific values for resistors \(R1\), \(R2\), \(R3\), and \(R4\) to achieve a voltage gain of 25. - Use appropriate formulas and circuit analysis techniques to find these values. **Explanation of the Circuit Diagram:** - The input voltage \(V_i\) is applied through resistor \(R1\), which is connected to the inverting input (-) of the op-amp. - Resistor \(R2\) is connected between the inverting input and the ground. - Resistor \(R4\) is connected between the output \((V_o)\) and the inverting input. - Resistor \(R3\) connects the output of the first op-amp to the non-inverting input (+) of a second op-amp which is grounded. This configuration is typical of a dual-stage op-amp circuit aimed at providing specific amplification of the input signal. The resistors' values are critical in determining the overall gain of the circuit. By following the steps mentioned in the objectives, students will be able to analyze the circuit and compute the desired output efficiently.
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