I only have single voltage power supplies. So here is how I make a comparator demonstration circuit that needs a split supply. I use one of the op amps of a dual op amp (2 op amps in one IC) to split 10V into a ±5V supply in relationship to the half way point which is declared as being the 0V reference point ground.

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I use many of the integrated circuits from this kit in my videos.

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Quick split or dual supply LM358 op amp comparator circuit electronics demonstration by electronzap



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