LP265 Datasheet, PDF (6/10 Pages) National Semiconductor (TI) – Micropower Programmable Quad Comparator

Typical Applications (Continued)
Ordinary Hysteresis
Hysteresis from Emitter
TL H 5023–6
It is a good practice to add a few millivolts of positive feedback to prevent
oscillation when the input voltage is near the threshold
Bar-Graph Display
TL H 5023 – 7
Positive feedback from the emitter can also prevent oscillations when V_IN is
near the threshold
Level-Sensitive Strobe
The positive feedback from pin 16 provides hysteresis
TL H 5023–8
TL H 5023 – 9
Comparators B C and D do not respond until activated by the signal applied
to comparator A
6