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

SOT-23 Package

s

Separate Input and Output Power Supplies

(SO-8 Only)

s

Output Optimized for 3V and 5V Supplies

s

TTL/CMOS Compatible Rail-to-Rail Output

s

Low Power Shutdown Mode: 0.1

µA

The LT

voltage operation. The input voltage range extends from

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. A shutdown control allows

for reduced power consumption and extended battery life in

portable applications.

The LT1719 is available in the SO-8 and 6-lead SOT-23

package. The SO-8 package has separate supplies which

allow flexible operation, accomodating separate analog input

ranges and output logic levels.

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

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

0.1

µF

1.8k

OUTPUT

GROUND

CASE

4.5ns Single/Dual Supply

3V/5V Comparator with

Rail-to-Rail Output

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

UltraFast is a trademark of Linear Technology Corporation.