That is a typical newbie error.Yes I did this because I have a battery that has positive and negative poles, how to make ground practically?
It is the same as U5A, as U5A, and U5B are the two channels of TL082 opampWhat about the connections on U5B?
That is only for a new version, a TL082H.https://www.ti.com/lit/ds/symlink/tl082.pdf
see page 11, input common mode voltage range: Vcc-+2 Vcc+0.1
Sorry, I don't understand what this means, and how significant it ishttps://www.ti.com/lit/ds/symlink/tl082.pdf
see page 11, input common mode voltage range: Vcc-+2 Vcc+0.1
Also I suspect you need a ground reference somewhere in the 200 mV input
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