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I have two OPA547 used as non inverting Amps. Both are running different output voltages,
may be one at 30V the other one at 5V.Both are hardware current limited to ~80mA by a config. resistor of 270k.
In that case one is working as source, here the 30V Amp the other one as sink (5V) (I think)
Now I shortcut both outputs.
What happens ? The 30V opamp I think should go into current limit , and what about the 5V Opamp ?
The essential question is: will this kill one of the Opamps ?
Hi Wolfgang,
depending on which OPA547 goes earlier into current limitation, any voltage between the two output voltages can be seen. Keep in mind that the current limiting feature of OPA547 is not extremely precise but shows some manufacturing tolerances and also some drift.
Kai
