While comparing 2 voltages, the op amp comparator circuit output will swing all the way to the opposite polarity voltage of the inverting input (-) voltage in relationship to the voltage set at the non inverting input (+).
- Lower (-) input V than reference voltage at (+) input = high output.
- Higher (-) input V than reference voltage at (+) input = low output.
- High output is a voltage that is as close to the positive supply as the op amp output can provide.
- Low output is as close to the negative supply voltage as the output can provide.
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