ANALOG DEVICES ADCMP609: Rail-to-Rail Fast Low Power 2.5 V to 5.5 V Single-Supply TTL/CMOS Comparator Data Sheet (Rev A 2008-08-21-)
Datasheet
The ADCMP609 is a fast comparator that offers full-range, single-supply, TTL/CMOS compatible output with low power, low voltage swing, programmable hysteresis, and high power supply rejection.