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>> No.1745905 [View]
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1745905

>>1745902
Yes there is a third method, replace any resistor to ground with two resistors, one to 5V and one to 0V. Shorts to ground should be replaced with the two resistors but also with capacitors in parallel with the resistors. The new resistors should be twice the original resistor values.

This isn't necessarily simpler, unless you really don't want to spare an extra op-amp or only have 1 or 2 "ground references" to make.

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