Q&A AD7714 REF IN(+) Current

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AD7714 REF IN(+) Current

Kazu on Jun 24, 2018

Hi,

I'll design a 2.5V power supply for the reference of AD7714. My spec is REF IN(+): 2.5V, REF IN(-): 0V and Ta=-5 degC~+50 degC.

Could you tell me a current rating of the REF IN(+)? 1mA is enough?

Regards,

Kazu

0 JellenieR

on Jun 25, 2018 12:17 AM over 2 years ago
Hi,

Yes, I think the current is around some uA level only. This thread may be able to help you regarding the actual measurement. https://ez.analog.com/message/114854?commentID=114854#comment-114854

We also have some recommended voltage reference parts for AD7714 that you may want to consider.

Please see:

For precision 2.5V applications with AVdd = 5V: AD780, REF43, REF192.
For precision 1.2V applications with AVdd = 3V: AD589, AD1580, ADR512.

Thanks,

Jellenie
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0 EZAdministrator

on Aug 24, 2018 12:51 PM over 2 years ago
This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

Thank you,
EZ Admin
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