Timeline for Using an arduino to measure a voltage in the range of 0-20mV
Current License: CC BY-SA 4.0
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| Jul 13, 2021 at 23:46 | comment | added | Russell McMahon♦ | To get better ground level output place a diode in the negative lead with a bypass cap across it. Use diode cathode as opamp Vnegative and diode anode as ground. This gives you an approx -0.6V negative supply. | |
| Jul 12, 2021 at 3:07 | comment | added | Daniel Dowling | Guess I'm still a noob. Yeah, I left the spare inputs floating, and assumed that rail-to-rail meant actually rail-to-rail. I'll try your suggestion (and I intend to set up a test bench to just test different ICs until I get one that actually works predictably. | |
| Jul 12, 2021 at 3:05 | history | edited | Tesla23 | CC BY-SA 4.0 |
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| Jul 12, 2021 at 2:55 | history | edited | Tesla23 | CC BY-SA 4.0 |
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| Jul 12, 2021 at 1:28 | history | edited | Tesla23 | CC BY-SA 4.0 |
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| Jul 12, 2021 at 0:59 | history | answered | Tesla23 | CC BY-SA 4.0 |