Your opamp does not have any negative feedback so its voltage gain of about 200,000 will keep its output slamed near the positive supply or ground and it will not be a linear amplifier.
A comparator cannot be a linear amplifier except only at very low frequencies as shown on a couple of datasheets.
EDIT:
I forgot. The LM324 and/or LM339 will not work in your circuit because their input common-mode voltage is the supply minus 1.5V and yours is higher so the inputs might not work.
A comparator cannot be a linear amplifier except only at very low frequencies as shown on a couple of datasheets.
EDIT:
I forgot. The LM324 and/or LM339 will not work in your circuit because their input common-mode voltage is the supply minus 1.5V and yours is higher so the inputs might not work.
Last edited: