We are using AD5755-1 and now meet Iout accuracy issue. We design to get 4-20mA Iout.
Based on the datasheet, the Maximum Iout error should be 0.05%.We follow the reference design and use external Rset for better accuracy.
We test the Iout with one series digital multimeter (keithley2000) ,
Now if input data "0" , we get 3.99740mA output. If input"65535", we get 20.2269mA
Does any problems exist with our test method? I also tie the schematic FYR~