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Question about AD7927

Hi there.

I have a question about AD7927.

According to the datasheet,  the reference input pin should be 2.5V.

(Please look at the attached file)

Are there any concerns if  3.3V voltage is applied to the  refrence input?

Actually my sensor system is 3.3V so I want to use 3.3V for VDD, Ref and Vdrive.



  • Hi,

    As per datasheet, the voltage range for the external reference is 2.5V ±1% for specified performance. While the abs max table shows REFIN to AGND to be −0.3V to AVDD+0.3V, we cannot guarantee performance at these conditions. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.