LT1719IS6

模拟比较器 LT1719 - 4.5ns Single/Dual Supply 3V/5V Comparator with Rail-to-Rail Output

DESCRIPTION

The LT® 1719 is an UltraFastTM comparator optimized for low voltage operation. Separate supplies allow flexible operation to accomodate separate analog input ranges and output logic levels. The input voltage range extends from 100mV below VEE to 1.2V below VCC. Internal hysteresis makes the LT1719 easy to use even with slow moving input signals. The rail-to rail outputs directly interface to TTL and CMOS. Alternatively the symmetric output drive can be harnessed for analog

applications or for easy translation to other single supply logic levels.

FEATURES

■ UltraFast: 4.5ns at 20mV Overdrive 7ns at 5mV Overdrive

■ Low Power: 4.2mA at 3V

■ Separate Input and Output Power Supplies

■ Output Optimized for 3V and 5V Supplies

■ Input Voltage Range Extends 100mV Below Negative Rail

■ TTL/CMOS Compatible Rail-to-Rail Output

■ Low Power Shutdown Mode: 0.1µA

APPLICATION

■ High Speed Differential Line Receiver

■ Crystal Oscillator Circuits

■ Level Translators

■ Threshold Detectors/Discriminators

■ Zero-Crossing Detectors

■ High Speed Sampling Circuits

■ Delay Lines