The 741 won't work. It only responds to inputs 3 volts above ground and 3 below Vcc.Is the LM358 your top recommendation? I will buy some now if you think that will work better. I'm getting near the deadline and just want to get this thing done.
I thought maybe I had a defective op amp so I tried 3 others with the same result.
It should be OK, and it's just one of the ones I have on hand and use from time to time. So maybe not a "top" recommendation, just a more-or-less generic op-amp that should work. I also have TLV271 on hand, and these are rail-to-rail. Nice, but possibly overkill for this application.Is the LM358 your top recommendation?
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