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 EL2227C is a dual, low-noise amplifier, ideally suited to line

receiving applications in ADSL and HDSLII designs. With low noise

specification of just 1.9nV/

√Hz and 1.2pA/√Hz, the EL2227C is per-

fect for the detection of very low amplitude signals.

The EL2227C features a -3dB bandwidth of 115MHz and is gain-of-2

stable. The EL2227C also affords minimal power dissipation with a

supply current of just 4.8mA per amplifier. The amplifier can be pow-

ered from supplies ranging from ±2.5V to ±12V.

The EL2227C 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+

EL2227C

(8-Pin SO and 8-Pin MSOP)

Features

• Voltage noise of only 1.9nV/

√Hz

• Current noise of only 1.2pA/

√Hz

• Bandwidth (-3dB) of 115MHz

• Gain-of-2 stable

• Just 4.8mA per amplifier

• 8-pin MSOP package

• ±2.5V to ±12V operation

Applications

• ADSL receivers

• HDSLII receivers

• Ultrasound input amplifiers

• Wideband instrumentation

• Communications equipment

• AGC & PLL active filters

• Wideband sensors

Ordering Information

Part No.

Package

Tape & Reel

Outline #

EL2227CY

8-Pin MSOP

-

MDP0043

EL2227CY-T13

8-Pin MSOP

13”

MDP0043

EL2227CY-T7

8-Pin MSOP

7”

MDP0043

EL2227CS

8-Pin SO

-

MDP0027

EL2227CS-T13

8-Pin SO

13”

MDP0027

EL2227CS-T7

8-Pin SO

7”

MDP0027

EL2227C

Dual Very Low Noise Amplifier