LT1721
High-Speed Quad Analog Comparator, 7ns, 2.7-6V, TTL Out, SOIC
Quad 4.5ns 3V/5V Comparator IC, Rail-to-Rail TTL Out
4-Ch Bipolar Comparator, 7ns, 3mV Vos, 6V, SOIC
LT1721 - Quad, 4.5ns, Single Supply 3V/5V Comparators with Rail-to-Rail Outputs