ELANT EL1508CS, EL1508CM, EL1508CL Datasheet

EL1508C - Product Brief

Differential DSL Line Driver

EL1508C - Product Brief

Features

• 450mA output drive capability

• 43.6V

differential output drive

P-P

into 100Ω

• 2nd/3rd harmonics of -85dBc/

-75dBc

• MTPR of -70dB

• Operates down to 3mA per
amplifier supply current

• Power control features

• Pin-compatible with EL1503C

Applications

• ADSL line driver

• HDSL line driver

• Video distribution amplifier

• Video twisted-pair line driver

Ordering Information

Part No Package Tape & Reel Outline #

EL1508CS 16-Pin SO (0.150”) MDP0027

EL1508CM 20-Pin SO (0.300") MDP0027

EL1508CL 24-Pin LPP MDP0046

General Description

The EL1508C is designed for driving full rate ADSL signals in both
CO and CPE applications at very low power dissipation. The high
drive capability of 450mA makes this driver ideal for both CAP and
DMT designs. It contains two wideband, high-voltage, current mode
feedback amplifiers with a number of power dissipation reduction
features.

These drivers achieve an MTPR distortion measurement of better than
70dB, while consuming typically 6mA of total supply current. This
supply current can be set using a resistor on the I

pin. Two other

ADJ

pins (C0 & C1) can also be used to adjust supply current to one of four
pre-set modes (full-IS, 2/3-IS, 1/3-IS, and full power-down). The
EL1508C operates on ±5V to ±12V supplies and retains its bandwidth
and linearity over the complete supply range.

The device is supplied in a thermally-enhanced 20-pin SO (0.300”), a
thermally-enhanced 16-pin SO (0.150”), and the small footprint
(4x5mm) 24-pin LPP packages. The EL1508C is specified for opera­tion over the full -40°C to +85°C temperature range.

Pin Configurations

VOUTA

VIN-A

NC

VIN-B

24

23

22

1

NC

VOUTB

21

20

19

NC

2

NC

3

VS-

4

NC

5

NC

6

NC

7

GND

Pin Configurations continues on Page 3

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.

Thermal Pad

8

9
C1

VIN+A

24-Pin LPP Top View

10
C0

18

NC

17

VS+

16

NC

15

NC

14

NC

13

GND

11

12

IADJ

VIN+B

November 29, 2001

EL1508C - Product Brief

Differential DSL Line Driver

EL1508C - Product Brief

General Disclaimer

Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes in the cir­cuitry or specifications contained herein at any time without notice. Elantec, Inc. assumes no responsibility for the use of any circuits described
herein and makes no representations that they are free from patent infringement.

WARNING - Life Support Policy

Elantec, Inc. products are not authorized for and should not be used
within Life Support Systems without the specific written consent of
Elantec, Inc. Life Support systems are equipment intended to sup-

Elantec Semiconductor, Inc.

675 Trade Zone Blvd.
Milpitas, CA 95035
Telephone: [phone]

(888) ELANTEC
Fax: [phone]
European Office: [phone]
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port or sustain life and whose failure to perform when properly used
in accordance with instructions provided can be reasonably
expected to result in significant personal injury or death. Users con­templating application of Elantec, Inc. Products in Life Support
Systems are requested to contact Elantec, Inc. factory headquarters
to establish suitable terms & conditions for these applications. Elan­tec, Inc.’s warranty is limited to replacement of defective
components and does not cover injury to persons or property or
other consequential damages.

November 29, 2001

2

Printed in U.S.A.