LM2903 Applications

Compare a sensor voltage with a reference and feed the result to logic. Choose a pull-up voltage compatible with that logic.

Use both comparators for upper and lower limits. The output circuit determines how the two decisions combine.

Convert a temperature, light or position voltage into an alarm state. Hysteresis prevents noisy repeated transitions.

Find LM2903 in the Components Library to place its schematic symbol and connect its pins.