I guess this would be primarily addressed to Gus or support. I would like a definitive realistic current handling capacity for the analog output. The datasheet for the chip says 100ma per pin. The only other reference I saw was that the AO3 is weaker than the digital pins.
The second piece of test equipment I am building with the Panda requires a slow analog ramp to drive DC motors from 0 to 2.5 volts. I know this is easily accomplished with pwm and an h-bridge, but that will not work in this app.
I was using the AO from my DAQ’s to drive an emitter follower power amp but when I tried that with the Panda II it worked for several hours but the chip was running warm and about 2.5 hours in the AO burned out. Fortunately the rest of the AI lines still work. Unfortunately I did not have a meter on it to see what it was drawing.
I am going to set it up tomorrow with an opto coupled darlington which will work for this app even though they are very slow. I would like a realistic number for the output if I have an app that needs faster response than a darlington. Or would I be better off to add a dedicated DAC an run it from the digital lines?