1

LT1719

APPLICATIO S

DESCRIPTIO

FEATURES

OVERDRIVE (mV)

0

30

50

1719 TA02

10

20

40

8

7

6

5

4

3

2

1

0

25

°C

RISING EDGE

FALLING EDGE

s

UltraFast: 4.5ns at 20mV Overdrive

7ns at 5mV Overdrive

s

Low Power: 4.2mA at 3V

s

Separate Input and Output Power Supplies

s

Output Optimized for 3V and 5V Supplies

s

Input Voltage Range Extends 100mV

Below Negative Rail

s

TTL/CMOS Compatible Rail-to-Rail Output

s

Low Power Shutdown Mode: 0.1

µA

The LT

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

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.

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 comparator with similar performance, see

the LT1720/LT1721.

s

High Speed Differential Line Receiver

s

Crystal Oscillator Circuits

s

Level Translators

s

Threshold Detectors/Discriminators

s

Zero-Crossing Detectors

s

High Speed Sampling Circuits

s

Delay Lines

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

UltraFast is a trademark of Linear Technology Corporation.

2.7V to 6V Crystal Oscillator with TTL/CMOS Output

Propagation Delay vs Overdrive

–

+

C1

LT1719

2.7V TO 6V

2k

620

Ω

220

Ω

1MHz TO 10MHz

CRYSTAL (AT-CUT)

2k

1719 TA01

0.01

µF

1.8k

OUTPUT

GROUND

CASE

4.5ns Single/Dual Supply

3V/5V Comparator with

Rail-to-Rail Output