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 EL5181C comparator is designed for operation in single supply

For single supplies, the inputs can operate from 0.1V below ground for

use in ground sensing applications.

The output side of the comparator 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 EL5181C can be used to hold the comparator

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

The EL5181C is available in the 8-pin SO package and is specified for

operation over the full -40°C to +85°C temperature range. Also avail-

able are a dual (EL5281C), a window comparator (EL5283C), and

quad versions (EL5481C and EL5482C).

1

2

3

4

8

7

6

5

VS+

L

A

T

C

H

VSD

OUT

GND

LATCH

IN+

IN-

VS-

EL5181CS

(8-Pin SO)

Pin Configuration

-

+

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

• Dual Available (EL5281C)

• Window Comparator (EL5283C)

• Quad Available (EL5481C &

EL5482C)

• Pin-compatible 4ns Family

Available (EL5x85C, EL5287C &

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 #

EL5181CS

8-Pin SO

-

MDP0027

EL5181CS-T7

8-Pin SO

7”

MDP0027

EL5181CS-T13

8-Pin SO

13”

MDP0027

EL5181C

8ns High-Speed Comparator