Hello,
I am trying to simulate the phase margin of a low pass filter that uses the THS4551 differential amplifier (stability simulation pictured below and attached), and the simulations are showing very low (5.74deg) phase margin. This circuit is already implemented in a PCB layout, so I am looking for any ways to improve the phase margin without significant modification to the circuit topology (adding a component or two may be okay but no major topology changes). Are there any suggested ways to improve the phase margin of this circuit?
Thank you,
Nick
