because of the short of AD5421CREZ, our company's crazy buyer bought some oldest AD5421CREZ(datacode is 1319)
PIN11- DVDD PIN12--COM so set the current 3.8mA-21mA
use datacode 1319
the issue is when set the output current 3.8mA ,get the output 2.6mA in fact
set the output current 20.8mA ,get the 22.3 mA in fact
use new datacode (lile 20xx,19xx) no issue,output current is right
when use it ,find it is difference with the other datecode lile 20xx,19xx against 1319.
check the datasheet, find some update ,but do not know the details
if have some way to solve with it ?
thank a lot