Voltage gain of this circuit?

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Voltage gain of this circuit? 

This image depicts a basic operational amplifier (op-amp) circuit used in electronics. The circuit includes the following components:

1. **Voltage Source (\( v_s \))**: A voltage source providing the input signal, represented by a circle with a plus and minus sign.

2. **Resistors**:
   - A 1kΩ resistor is connected in series with the voltage source (\( v_s \)) leading to the inverting input terminal of the op-amp (\( v_- \)).
   - A 10kΩ resistor is connected from the output (\( v_0 \)) back to the inverting input (\( v_- \)), forming a feedback loop.

3. **Operational Amplifier (Op-Amp)**:
   - The op-amp has two input terminals: inverting (\( v_- \)) and non-inverting (\( v_+ \)). 
   - The non-inverting terminal is connected directly to the ground.

4. **Current Direction**:
   - Two arrows indicate the direction of current: \( i_- \) flowing into the inverting input and \( i_+ \) flowing into the non-inverting input (though \( i_+ \) is zero since it is grounded).

5. **Ground Symbols**: There are ground connections at the input voltage source, the non-inverting terminal, and the output of the op-amp.

This represents a basic feedback circuit, likely configured as an inverting amplifier, where the voltage gain is determined by the ratio of the resistors (\( 10kΩ / 1kΩ \)). The output voltage (\( v_0 \)) is fed back to the inverting input to stabilize the gain.
Transcribed Image Text:This image depicts a basic operational amplifier (op-amp) circuit used in electronics. The circuit includes the following components: 1. **Voltage Source (\( v_s \))**: A voltage source providing the input signal, represented by a circle with a plus and minus sign. 2. **Resistors**: - A 1kΩ resistor is connected in series with the voltage source (\( v_s \)) leading to the inverting input terminal of the op-amp (\( v_- \)). - A 10kΩ resistor is connected from the output (\( v_0 \)) back to the inverting input (\( v_- \)), forming a feedback loop. 3. **Operational Amplifier (Op-Amp)**: - The op-amp has two input terminals: inverting (\( v_- \)) and non-inverting (\( v_+ \)). - The non-inverting terminal is connected directly to the ground. 4. **Current Direction**: - Two arrows indicate the direction of current: \( i_- \) flowing into the inverting input and \( i_+ \) flowing into the non-inverting input (though \( i_+ \) is zero since it is grounded). 5. **Ground Symbols**: There are ground connections at the input voltage source, the non-inverting terminal, and the output of the op-amp. This represents a basic feedback circuit, likely configured as an inverting amplifier, where the voltage gain is determined by the ratio of the resistors (\( 10kΩ / 1kΩ \)). The output voltage (\( v_0 \)) is fed back to the inverting input to stabilize the gain.
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