FEATURES
Dual/Quad, 4.5ns, Single Supply 3V/5V Comparators with Rail-to-Rail Outputs DESCRIPTION
n UltraFast: 4.5ns at 20mV Overdrive 7ns at 5mV Overdrive n Low Power: 4mA per Comparator n Optimized for 3V and 5V Operation n Pinout Optimized for High Speed Ease of Use n Input Voltage Range Extends 100mV Below Negative Rail n TTL/CMOS Compatible Rail-to-Rail Outputs n Internal Hysteresis with Specified Limits n Low Dynamic Current Drain; 15μA/(V-MHz), Dominated by Load In Most Circuits n Tiny 3mm × 3mm × 0.75mm DFN Package (LT1720) APPLICATIONS
n High Speed Differential Line Receiver n Crystal Oscillator Circuits n Window Comparators n Threshold Detectors/Discriminators n Pulse Stretchers n Zero-Crossing Detectors n High Speed Sampling Circuits The LT®1720/LT1721 are UltraFastTM dual/quad comparators optimized for single supply operation, with a supply voltage range of 2.7V to 6V. The input voltage range extends from 100mV below ground to 1.2V below the supply voltage. Internal hysteresis makes the LT1720/LT1721 easy to use even with slow moving input signals.
Linear Technology
