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OP1177 output ocsillation in  AD5726 datasheet reference circuit

Question asked by m-kun on Jun 14, 2017
Latest reply on Jun 14, 2017 by harryh

In AD5726 datasheet ,Figure25 have OP1177 voltage follower.

And OP1177 output have 0.2uF capacitor.

But voltage follower OP1177 with output 0.2uF have only a few phase margine  in ADIsim.

I think that this circuit is unstable.

 

Is this consideration right?

 

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