Hi Everyone,
I am using digital potentiometer AD5293 and doing i2c communication using Labview.
The only issue I have is that, when I measure the value at wiper and B terminal, for some reason it looks like it is floating at higher resistance, like if I apply 10kohm, it's 9.7kohm, no problem at this point until 40kOhm to 50kohm, I know the tolerances of resistors.
But when I apply 60, 70 or 80kohm or in between them, then by using DMM I check the value it measures like
( 63, 63, 63. 8 etc, or 68, 67, 65 63 etc.) if I applied 65kohm. For all higher values its show like this. Does it optimal or some fault in my circuit or digital potentiometer? I changed the potentiometers, and PCB but it's behavior is the same.
Please help
