Hello. I need a little help with an opamp problem I'm having. I'm using the opamps as a comparator to see if the opamps are functioning. I'm using an LM358, supplying 12V, and I'm applying 5V positive/ 0V negative voltages to the inputs, and the output goes through a resistor and to an led. By switching the inputs around from 5V to ground in various combinations, I can get the led to be on or off, which is what I'd expect.
The problem is when I connect a high speed opamp such as LM833 in the exact same circuit. The opamp seems to only want to output high even when it should be producing a low. I also tried with other high speed ones such as TL082, and they all do the same thing. Is there something different about these opamps that I'm missing?
Thanks!