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AMC3330: Output does not have p

Part Number: AMC3330

Tool/software:

Hello,

We have designed one AC voltage measurement circuit using AMC3330 IC, SCH are as per follow, 

In this, I have changed R54 to 10K, all other components are as snapshot. 

When we take output measurements, we will find output edge are not as per AC sine wave, instead its looks like square wave. 

Looks like, its has some noise into signal. 

below signal is measured across OUTP and OUTN pins.

Can you please help us to understand why it's happening, or how to resolve this? 

Best Regards, 

Umang