User,
Thanks, that is helpful. Inverting input voltage is much greater than non-inverting input, therefore the correct response is for output to go low. For that to happen pin 11 must be low and it is low. Pin 2 voltage matches output voltage and feedback…
Lee Chen Chan,
Thanks for capturing the graph.
It looks to me like there is some load asserting itself on the input signal. And it reminded me of your observation that the erroneous behavior goes away after you power cycle the op-amp.
Do you have…
