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ADN2526:  11.3 Gbps Active Back-Termination Differential Laser Diode Driver

Product Details


The ADN2526 laser diode driver is designed for direct modula-tion of packaged laser diodes that have a differential resistance ranging from 5 Ω to 50 Ω. The active back-termination in the ADN2526 absorbs signal reflections from the TOSA end of the output transmission lines, enabling excellent optical eye quality to be achieved even when the TOSA end of the output transmission lines is significantly misterminated. ADN2526 is an SFP+ MSA-compliant device, and its small package and enhanced ESD protection provide the optimum solution for compact modules where laser diodes are packaged in low pin-count optical subassemblies.

The modulation and bias currents are programmable via the MSET and BSET control pins. By driving these pins with control voltages, the user has the flexibility to implement various average optical power and extinction ratio control schemes, including closed-loop or look-up table control. The automatic laser shutdown (ALS) feature allows the user to turn on/off the bias and modulation currents by driving the ALS pin with a LVTTL logic source.

The product is available in a space-saving 3 mm × 3 mm LFCSP specified from −40°C to +85°C.

Applications

  • SONET OC-192 and SDH STM-64 optical transceivers
  • 10 Gb Fibre Channel transceivers
  • 10 Gb Ethernet optical transceivers
  • SFP+/XFP/X2/XENPAK/XPAK/MSA 300 optical modules

FEATURES and BENEFITS

  • 3.3 V operation
  • Up to 11.3 Gbps operation
  • Typical 24 ps rise/fall times
  • Full back-termination of output transmission lines
  • Drives TOSAs with resistances ranging from 5 Ω to 50 Ω
  • Bias current range: 10 mA to 100 mA
  • Differential modulation current range: 10 mA to 80 mA
  • Voltage input control for bias and modulation currents
  • Data inputs sensitivity: 150 mV p-p diff
  • Automatic laser shutdown (ALS)
  • Cross point adjustment (CPA)
  • See data sheet for additional Features

ADN2526 Functional Block Diagram

Evaluation Kits & Symbols & Footprints

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Price, packaging, availability

ADN2526 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADN2526ACPZ Status: Production 16 ld LFCSP (3x3mm, 1.50mm exposed pad) 16 Ind Tray, 714 $25.37 $21.14 Y  Material Info PCN Purchase Sample
ADN2526ACPZ-R2 Status: Production 16 ld LFCSP (3x3mm, 1.50mm exposed pad) 16 Reel, 250 $25.37 $25.37 Y  Material Info PCN Purchase
ADN2526ACPZ-R7 Status: Production 16 ld LFCSP (3x3mm, 1.50mm exposed pad) 16 Ind Reel, 1500 - $21.14 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.

ADN2526 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADN2526-NTZ Status: Production Evaluation Board - Yes - Contact ADI

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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