AD5433: CS pin

Hi,

 

I'm evaluating the board that used AD5433.

 

I executed the test that the noise is applied to the board.

When the noise is applied to the board, the output of AD5433 is reset to zero.

To avoid the problem, I added the capacitor of 470pF(to ground) to the AD5433 CS pin.

 

Is it safe though large capacitor (470pF) is added to the CS pin?

 

Best Regards,
Mr.K