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Noise in EXC pins of AD7746

Question asked by msg on Jan 23, 2017
Latest reply on Feb 11, 2017 by Wa$iM

Hello all,

I checked the noise in the EXC pins of AD7746 evaluation board and there seems to be no noise but when it comes to the EXC pins of AD7746 i used to built a capacitance to digital conversion board there seems to be noise. Using smaller voltages seems to help a little, When voltage across the capacitors is configured to VDD/8 or VDD/4 the noise seems to be reduced, but still the desired resolution is not reached.

So, I wanted to know if there is any other way to reduce the noise in EXC pins?

Any suggestions are greatly appreciated.

Best regards,

Siraj

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