Hi, I'm trying to understand when I should and should not use an external voltage reference.
I'm connecting a load cell to the device as per http://www.analog.com/media/en/technical-documentation/user-guides/EVAL-AD7124-4SDZ_UG-855.pdf. An external reference, 2.5V, is shown in this application note. Is the internal reference just as good? If so, why not just use the internal reference voltage? Can I set the internal reference to 2.5V. Thanks, Brian