REV. 0

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

a

AD8561

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

World Wide Web Site: http://www.analog.com

Fax: 781/326-8703

© Analog Devices, Inc., 1998

Ultrafast 7 ns

Single Supply Comparator

PIN CONFIGURATIONS

FEATURES

7 ns Propagation Delay at 5 V

Single Supply Operation: 3 V to 10 V

Low Power

Latch Function

TSSOP Packages

APPLICATIONS

High Speed Timing

Clock Recovery and Clock Distribution

Line Receivers

Digital Communications

Phase Detectors

High Speed Sampling

Read Channel Detection

PCMCIA Cards

Upgrade for LT1016 Designs

GENERAL DESCRIPTION

The AD8561 is a single 7 ns comparator with separate input and

output sections. Separate supplies enable the input stage to be

operated from

±5 V dual supplies and +5 V single supplies.

Fast 7 ns propagation delay makes the AD8561 a good choice

for timing circuits and line receivers. Propagation delays for

rising and falling signals are closely matched and track over

temperature. This matched delay makes the AD8561 a good

choice for clock recovery, since the duty cycle of the output will

match the duty cycle of the input.

The AD8561 has the same pinout as the LT1016, with lower

supply current and a wider common-mode input range, which

includes the negative supply rail.

The AD8561 is specified over the industrial (–40

°C to +85°C)

temperature range. The AD8561 is available in both the 8-lead

plastic DIP, 8-lead TSSOP or narrow SO-8 surface mount

packages.

8-Lead Narrow Body SO

(SO-8)

8-Lead Plastic DIP

(N-8)

8-Lead TSSOP

(RU-8)

IN

IN

V

OUT

GND

LATCH

OUT

1

45

8

AD8561

V

8

7

6

5

1

2

3

4

V

IN

IN

OUT

OUT

GND

LATCH

V

AD8561

V

IN

V

IN

OUT

OUT

GND

LATCH

AD8561