LT1719 Datasheet | Linear Technology

LT1719 4.5ns Single/Dual Supply 3V/5V parator with Rail-to-Rail Output Features s s s s s DESCRIPTIO s s Ultra Fast: 4.5ns at 20m V Overdrive 7ns at 5m V Overdrive Low Power: 4.2m A at 3V Separate Input and Output Power Supplies Output Optimized for 3V and 5V Supplies Input Voltage Range Extends 100m V Below Negative Rail TTL/CMOS patible Rail-to-Rail Output Low Power Shutdown Mode: 0.1µA U APPLICATIO S s s s s s s s High Speed Differential Line Receiver Crystal Oscillator Circuits Level Translators Threshold Detectors/Discriminators Zero-Crossing Detectors High Speed Sampling Circuits Delay Lines The LT ®1719 is an Ultra Fast TM parator optimized for low voltage operation. Separate supplies allow flexible operation to acodate separate analog input ranges and output logic levels. The input voltage range extends from 100m V below VEE to 1.2V below VCC. Internal hysteresis makes the LT1719 easy to use even with slow moving input signals. The rail-torail 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. The LT1719 is available in the 8-pin SO package; a shutdown control allows for reduced power consumption and extended battery life in portable applications. For a dual/quad parator with similar performance, see the LT1720/LT1721. , LTC and LT are registered trademarks of Linear Technology Corporation. Ultra Fast is a trademark of Linear Technology Corporation. TYPICAL APPLICATION 2.7V to 6V Crystal Oscillator with TTL/CMOS Output 2.7V TO 6V 2k 1MHz TO 10MHz CRYSTAL (AT-CUT) 8 7 6 GROUND CASE OUTPUT RISING EDGE (t PDLH) 25°C VSTEP = 100m V VCC = 5V CLOAD = 10p F Propagation Delay vs Overdrive 220Ω DELAY (ns) 620Ω 5 4 3 2 FALLING EDGE (t PDHL) + - C1 LT1719 2k 1719 TA01 1 0 0 10 20 30 OVERDRIVE (m V) 40 50 1719 TA02 0.01µF 1.8k...