I want to do a very basic, high-level Op-amp test without building a circuit with resistors, etc. Just a meter, to the extent possible.
So I tried powering it up on 5V and just measuring voltage at the inverting, non-inverting, and output pins. I got 0.2V on the two input pins, and 3.8V on the output pin. Same thing every channel. I'm not very knowledgeable about this component, but I assume this might be expected without a ground attached?
What other simple tests could I do? For example, I've learned that a transformer or battery pack center tap would be a suitable ground, and using that at both the inputs should give me 0V out? But what about on a separate power supply?
Are these valid test of anything related to the op amp?
So I tried powering it up on 5V and just measuring voltage at the inverting, non-inverting, and output pins. I got 0.2V on the two input pins, and 3.8V on the output pin. Same thing every channel. I'm not very knowledgeable about this component, but I assume this might be expected without a ground attached?
What other simple tests could I do? For example, I've learned that a transformer or battery pack center tap would be a suitable ground, and using that at both the inputs should give me 0V out? But what about on a separate power supply?
Are these valid test of anything related to the op amp?