Add to Signal Chain Designer

ADN2531:  11.3 Gbps, Active Back-Termination, Differential Laser Diode Driver

Product Details


The ADN2531 laser diode driver can work with directly modulated laser diodes, including vertical-cavity surface-emitting laser (VCSEL), Fabry-Perot (FP) lasers, and distributed feedback (DFB) lasers, with a differential loading resistance ranging from 5 Ω to 140 Ω. The active back-termination in the ADN2531 absorbs signal reflections from the laser diode side of the output transmission lines, enabling excellent optical eye quality even when the TOSA end of the output transmission lines is significantly mismatched. The ADN2531 is a SFP+ MSA-compliant device, and its small package and enhanced ESD protection provides the optimum solution for compact modules in which 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 a closed-loop or a look-up table control. The automatic laser shut-down (ALS) feature allows turning the bias on and off while simultaneously modulating currents by driving the ALS pin with a low voltage transistor-to-transistor logic (LVTTL) source.

The product is available in a space-saving, 3 mm × 3 mm LFCSP package and operates from −40°C to +100°C.

FEATURES and BENEFITS

  • 3.3 V operation
  • Up to 11.3 Gbps operation
  • Typical 26 ps rise/fall times
  • 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 differential
  • Automatic laser shutdown (ALS)
  • Crosspoint adjustment (CPA
  • VCSEL, FP, DFB laser support
  • SFF/SFP/XFP/SFP+ MSA compliant
  • Optical evaluation board available

Functional Block Diagram for ADN2531

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

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

ADN2531 Model Options
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.

ADN2531 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADN2531-NPZ Status: Production Evaluation Board - Yes - Contact ADI
EVAL-ADN2531-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.

Check Inventory & Purchase

View Sales and Distribution Offices

沪ICP备09046653号
content here.
content here.

Review this Product

Close