ADN2820 Ver la hoja de datos (PDF) - Analog Devices

Número de pieza

componentes Descripción

Fabricante

ADN2820

10.7 Gbps, 3.3 V, Low Noise, TIA with Average Power Monitor

Analog Devices 

FEATURES

Technology: high performance SiGe

Bandwidth: 9 GHz

Input noise current density: 1.0 µA

Optical sensitivity: –19.3 dBm

Differential transimpedance: 5000 V/A

Power dissipation: 200 mW

Input current overload: 2.8 mA p-p

Linear input range: 0.15 mA p-p

Output resistance: 50 Ω/side

Output offset adjustment range: 240 mV

Average input power monitor: 1 V/mA

Die size: 0.87 mm × 1.06 mm

APPLICATIONS

10.7 Gbps optical modules

SONET/SDH OC-192/STM-64 and 10 GbE

receivers, transceivers, and transponders

10.7 Gbps, 3.3 V, Low Noise,

TIA with Average Power Monitor

ADN2820

PRODUCT DESCRIPTION

The ADN2820 is a compact, high performance, 3.3 V power

supply SiGe transimpedance amplifier (TIA) optimized for

10 Gbps Metro-Access and Ethernet systems. It is a single chip

solution for detecting photodiode current with a differential

output voltage. The ADN2820 features low input referred noise

current and high output transimpedance gain, capable of

driving a typical CDR or transceiver directly. A POWMON

output is provided for input average power monitoring and

alarm generation. Low nominal output offset enables dc output

coupling to 3.3 V circuits. The OFFSET control input enables

output slice level adjustment for asymmetric input signals. The

ADN2820 operates with a 3.3 V power supply and is available in

die form.

FUNCTIONAL BLOCK DIAGRAM

3.3V

VCC (1,2,3)

RF

50Ω

50Ω

RF = 500Ω

hυ

IN (13)'

CB

CF

0.85V

AV = 20dB

20mA

OUT (5)

OUTB (6)

OFFSET (14)

POWMON (8)

GND (10, 11)

GND (4,7)

CLF (9)

CLF

Figure 1. Functional Block Diagram/Typical Operating Circuit

03194-0-001

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable.

However, no responsibility is assumed by Analog Devices for its use, nor for any

infringements of patents or other rights of third parties that may result from its use.

Specifications subject to change without notice. No license is granted by implication

or otherwise under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

Fax: 781.326.8703 © 2003 Analog Devices, Inc. All rights reserved.

Share Link: