How can we follow that diagram? You have two completely different pin outs in each of the diagrams. Please try to draw comprehensible circuits, rather than make usredraw them individually to figure out what's what!
Tested a MCP4261 by MEGA2560, the MCP became hot after half hour, what's wrong?
If it kind of sort of works and it gets hot, you're drawing too much current through the wiper(s).Without seeing what both pots are doing, your guess is better than any one else's since only you can see what they are connected to.
Hmmm, the 'ol carbide cranium. How much current are you drawing through the part ?
Didn't measure, the load is 4.7K + LED.
The maximum current through the wiper is 2.5mA, so the LED is likely drawing too much.
BJ ..... is that a 5V system? Not sure what their connection is ... but 4.7 kohm across a bare 5V system would give around 1 milliamp? Still don't know what their set up is. Was just asking only.
That's a good point. Max VDD is +7V. I had assumed that the LED wouldn't be working with so little current and so the OP must have gotten the resistor value wrong.