Recommended · for some experience
#79: Op Amp Power Supply Considerations: split, single, virtual ground, etc. - a tutorial
Why people recommend it
Alan Wolke compares split, single and virtual-ground supplies for op amps; people use it to work out how to bias inputs from a single battery.
Watch for: virtual ground divider schematic around 1:54
In their words
I watched this video: [video] where this guy uses a variable power supply to bias his input (schematic at 6:45) and also discusses using a resistor divider (schematic at 1:54).
critter on electronics.stackexchange.com, Aug 2020. CC BY-SA.
If not, do I have to include a voltage divider and create a virtual ground (as shown: [video])?
Art Seek Main on electronics.stackexchange.com, Jul 2020. CC BY-SA.
People managed it even with 741 basically:
got trolled too much this week on electronics.stackexchange.com, Nov 2015. CC BY-SA.
