Dear Analog Technical Support Team
I have met a question on using internal voltage reference of AD7682.
I am using AD7682 as a voltage reference at the same time. It is designed to shift up ac signals.
As is stated in the datasheet: "Because the current output of REFIN is limited, it can be used as a source if followed by a suitable buffer, such as the AD8605." I misunderstood that REFIN will be the voltage reference of 2.5V/4.096V.
But after doing some tests, I found that REF is exporting the voltage of 2.5V/4.096V....
My question is, is REFIN able to export stable voltage of 2.3V? Can I use it as a voltage shifter source with some resistors?
Because the PCBs have been made already to use 4.096V*1.1kOhm/4.4kOhm to provide 1V, it is easier to just change the resistors and export 1V from 2.3V.
I am in a very hurry condition..It would be really appreciated if you could help. (The attachment is my schematic. )
Thank you very much.