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Q. External Frequency Compensation of operational amplifier?
For applications requiring a more extended high-frequency response, there are op amps with no internal compensation, and external frequency-compensation terminals are provided on these op amps (for example, the 709) so that the frequency response can be tailored to avoid instability without the heavy degrading of frequency response due to internal compensation. A typical frequency-compensation circuit for the µA 709 is illustrated in Figure. Op-amp manufacturers supply plots of open- and closed-loop responses for various values of components connected to the frequency-compensation terminals.
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restructuring
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