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 EL2228C is a dual, low-noise amplifier, ideally suited to filtering

applications in ADSL and HDSLII designs. It feature low noise speci-

fication of just 4.9nV/

√Hz and 1.2pA/√Hz, making it ideal for

processing low voltage waveforms.

The EL2228C has a -3dB bandwidth of 80MHz and is gain-of-1 sta-

ble. It also affords minimal power dissipation with a supply current of

just 4.5mA per amplifier. The amplifier can be powered from supplies

ranging from ±2.5V to ±12V.

The EL2228C is available in a space saving 8-Pin MSOP package as

well as the industry standard 8-Pin SO. It can operate over the -40°C to

+85°C temperature range.

Connection Diagram

1

2

3

4

8

7

6

5

-

+

-

+

VS-

VS+

VINA+

VINA-

VOUTA

VOUTB

VINB-

VINB+

EL2228C

8-Pin SO and 8-Pin MSOP

Features

• Voltage noise of only 4.9nV/

√Hz

• Current noise of only 1.2pA/

√Hz

• Gain-of-1 stable

• Just 4.5mA per amplifier

• 8-pin MSOP package

• ±2.5V to ±12V operation

Applications

• ADSL Filters

• HDSLII Filters

• Ultrasound input amplifiers

• Wideband Instrumentation

• Communications equipment

• Wideband sensors

Ordering Information

Part No.

Temp. Range

Package

Outline #

EL2228CY

8-Pin MSOP

-

MDP0043

EL2228CY-T13

8-Pin MSOP

13”

MDP0043

EL2228CY-T7

8-Pin MSOP

7”

MDP0043

EL2228CS

8-Pin SO

-

MDP0027

EL2228CS-T13

8-Pin SO

13”

MDP0027

EL2228CS-T7

8-Pin SO

7”

MDP0027

EL2228C - Preliminary

Dual Low Noise Amplifier