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Open Loop Gain Of Feedback Transconductance Amplifier Equation:
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The Open Loop Gain of a Feedback Transconductance Amplifier is the gain of an operational amplifier without feedback. It represents the ratio of output current to input voltage and is denoted as A.
The calculator uses the Open Loop Gain equation:
Where:
Explanation: The equation calculates the open loop gain by dividing the output current by the input voltage.
Details: Accurate open loop gain calculation is crucial for amplifier design, stability analysis, and understanding the performance characteristics of operational amplifiers in various circuit configurations.
Tips: Enter output current in Amperes and input voltage in Volts. Both values must be positive and non-zero for accurate calculation.
Q1: What is the significance of open loop gain in amplifier design?
A: Open loop gain determines the maximum amplification capability of an amplifier without feedback and influences the overall performance and stability of the circuit.
Q2: How does open loop gain differ from closed loop gain?
A: Open loop gain is the inherent gain of the amplifier without feedback, while closed loop gain is the gain with feedback applied, which is typically more stable and predictable.
Q3: What are typical values for open loop gain?
A: Open loop gain values can vary significantly depending on the amplifier design, but typically range from 10^4 to 10^6 for most operational amplifiers.
Q4: How does temperature affect open loop gain?
A: Open loop gain generally decreases with increasing temperature due to changes in transistor characteristics and other semiconductor properties.
Q5: Why is high open loop gain desirable?
A: High open loop gain provides better accuracy, lower distortion, and improved performance in feedback amplifier configurations.