Hello All,
we are using DAC AD5316R. The Vref is 3.3v
First I perform a software reset with the command 0x60 and then disable the internal reference with the command 0x70 with setting the DB0 as 1.
with this, i expect that the DAC starts using the external Vref 3.3v
so when a digital value of 1023 is sent to a particular channel, then i expect a output voltage of 3.3v.
But, when i write a 1023 digital value, I get only 2.5v
NOTE: The 3.3v to Vref is provided via 1k ohm resistor.
Hi,
I'd like to know more about your application. Can you share your schematic involving the AD5316R? What level is the supply pins?
Where you able to check first if the VREF output follows the internal ref disable command you set?
Best regards,
Ian