Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these

specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.

© 2001 Elantec Semiconductor, Inc.

General Description

The EL5481C and EL5482C comparators are designed for operation

in single supply and dual supply applications with 5V to 12V between

below ground for use in ground sensing applications.

The output side of the comparators can be supplied from a single sup-

ply of 2.7V to 5V. The rail-to-rail output swing enables direct

connection of the comparator to both CMOS and TTL logic circuits.

The latch input of the EL5482C can be used to hold the comparator

output value by applying a low logic level to the pin.

The EL5481C is available in the 16-pin SO (0.150") package and the

EL5482C in the 24-pin QSOP package. All are specified for operation

over the full -40°C to +85°C temperature range. Also available are a

single (EL5181C), a dual (EL5281C), and a window comparator

(EL5283C).

1

2

3

4

16

15

14

13

5

6

7

12

11

10

8

9

IND-

INA-

IND+

VS+

OUTD

OUTC

VSD

INC+

INC-

INA+

GND

OUTA

OUTB

VS-

INB+

INB-

-

+

+

+

+

-

-

-

EL5481CS

16-Pin SO (0.150")

Pin Configurations

1

2

3

4

16

15

14

13

5

6

7

12

11

9

8

10

20

19

18

17

24

23

22

21

EL5482CU

24-Pin QSOP

-

+

INA-

INA+

NC

LATCHA

LATCHB

NC

INB+

INB-

GND

VS-

OUTA

OUTB

IND-

IND+

NC

LATCHD

LATCHC

NC

INC+

INC-

VSD

VS+

OUTD

OUTC

Features

• 8ns Typ. Propagation Delay

• 5V to 12V Input Supply

• +2.7V to +5V Output Supply

• True-to-ground Input

• Rail-to-rail Outputs

• Active Low Latch

• Single (EL5181C) Available

• Dual (EL5281C) Available

• Window Available (EL5283C)

• Pin-compatible 4ns Family

Available (EL5185C, EL5285C,

EL5287C, EL5485C & EL5486C)

Applications

• Threshold Detection

• High Speed Sampling Circuits

• High Speed Triggers

• Line Receivers

• PWM Circuits

• High Speed V/F Converters

Ordering Information

Part No.

Package

Tape &

Reel

Outline #

EL5481CS

16-Pin SO (0.150")

-

MDP0027

EL5481CS-T7

16-Pin SO (0.150")

7”

MDP0027

EL5481CS-T13

16-Pin SO (0.150")

13”

MDP0027

EL5482CU

24-Pin QSOP

-

MDP0040

EL5482CU-T13

24-Pin QSOP

13”

MDP0040

EL5481C/EL5482C

Quad 8ns High-Speed Comparators