LINEAR TECHNOLOGY LT1715 User's Manual

LT1715 4ns, 150MHz

Dual Comparator with

Independent Input/Output Supplies

FEATURES DESCRIPTIO Ultra Fast: 4ns at 20m V Overdrive The LT®1715 is an Ultra Fast TM dual comparator optimized 150MHz Toggle Frequency for low voltage operation. Separate supplies allow inde- Separate Input and Output Power Supplies pendent analog input ranges and output logic levels with Low Power: 4.6m A per Comparator at 3V no loss of performance. The input voltage range extends Pinout Optimized for High Speed Use from 100m V below VEE to 1.2V below VCC. Internal hyster- Output Optimized for 3V and 5V Supplies esis makes the LT1715 easy to use even with slow moving TTL/CMOS Compatible Rail-to-Rail Output input signals. The rail-to-rail outputs directly interface to Input Voltage Range Extends 100m V TTL and CMOS. The symmetric output drive results in Below Negative Rail similar rise and fall times that can be harnessed for analog Internal Hysteresis with Specified Limits applications or for easy translation to other single supply

logic levels. APPLICATIO S The LT1715 is available in the 10-pin MSOP package. The pinout of the LT1715 minimizes parasitic effects by plac-

High Speed Differential Line Receivers

ing the most sensitive inputs away from the outputs,

Level Translators

shielded by the power rails.

Window Comparators

For a dual/quad single supply comparator with similar

Crystal Oscillator Circuits

propagation delay, see the LT1720/LT1721. For a single

Threshold Detectors/Discriminators

comparator with similar propagation delay, see the LT1719.

High Speed Sampling Circuits

, LTC and LT are registered trademarks of Linear Technology Corporation.

Delay Lines

Ultra Fast is a trademark of Linear Technology Corporation.

TYPICAL APPLICATIO 100MHz Dual Differential Line Receiver Line Receiver Response to 100MHz Clock,

50MHz Data Both with 25m VP-P Inputs

CLOCK OUT 1V/DIV

IN A OUT A

DATA OUT 1V/DIV

IN B OUT B

FET PROBES 5ns/DIV 1715 TA02

1715 TA01