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ADN2848:  3.3 V Dual-Loop 50 Mbps to 1.25 Gbps Laser Diode Driver

Product Details


The ADN2848 uses a unique control algorithm to control both the average power and the extinction ratio of the laser diode (LD) after initial factory setup. External component count and PCB area are low because both power and extinction ratio control are fully integrated. Programmable alarms are provided for laser fail (end of life) and laser degrade (impending fail).

Applications

  • SONET OC-1/3/12/24
  • SDH STM-0/1/4
  • Fibre Channel
  • Gigabit Ethernet

FEATURES and BENEFITS

  • 50 Mbps to 1.25 Gbps operation
  • Single 3.3 V operation
  • Bias current range: 2 to 100 mA
  • Modulation current range: 5 to 80 mA
  • Monitor photo diode current: 50 µA to 1200 µA
  • 50 mA supply current at 3.3 V
  • Closed-loop control of power and extinction ratio
  • Full current parameter monitoring
  • Laser fail and laser degrade alarms
  • Automatic laser shutdown (ALS)
  • Optional clocked data
  • Supports FEC rates

Functional Block Diagram for ADN2848

Documentation

Title Content Type File Type
ADN2848: 3.3 V Dual-Loop 50 Mbps to 1.25 Gbps Laser Diode Driver Data Sheet (Rev B, 02/2013) (pdf, 398 kB) Data Sheets PDF
AN-637: ADN2848 AC-Coupled Optical Evaluation Kit  (pdf, 384 kB)
This application note describes the 32-lead ADN2848 laser diode driver Rev.A1 evaluation kit. The evaluation kit is a demonstration board that provides ac-coupled optical evaluation of the ADN2848. This document describes how to configure the board in order to operate this part optically.
Application Notes PDF
AN-658: Optical Channel Identification on the ADN284x Laser Drivers (Part I)  (pdf, 234 kB) Application Notes PDF
Dual-Loop Laser Drivers Bring Robustness To Optical Networks
... A new breed of laser drivers raises the bar in optical transmission for long-term stability, manufacturability, and maintainability.
Technical Articles HTML
ADN2848: 50 Mbps–1.25 Gbps Laser Diode Driver with Dual-Loop Control  (pdf, 205 kB) Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

ADN2848 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADN2848ACPZ-32 Status: Production 32 ld LFCSP (5x5mm CP-32-2) 32 Ind Tray, 490 $6.45 $5.85 Y  Material Info PCN Purchase Sample
ADN2848ACPZ-32-RL Status: Last Time Buy 32 ld LFCSP (5x5mm CP-32-2) 32 Ind Reel, 5000 - $5.85 Y  Material Info PCN/PDN Purchase
ADN2848ACPZ-32-RL7 Status: Production 32 ld LFCSP (5x5mm CP-32-2) 32 Ind Reel, 1500 - $5.85 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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