SNOAA79 June   2021 DAC121S101QML-SP , LMP7704-SP , TPS7A4501-SP

 

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AC Simulation Results

Stability

The following plot shows the open-loop, AC, gain and phase plot of the circuit. The phase margin is found to be ≈ 62°. The rate-of-closure at fcl (AOLB = 0dB) is 20dB/decade between AOL and 1/β. As discussed previously, components Riso, RF, and CF compensate the circuit and ensure stability. For more details, see TI Precision Labs - Op Amps: Stability - Introduction.


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