GENERAL DESCRIPTION
The ADN2526 laser diode driver is designed for direct modulation 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.

FEATURES
   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)
   XFP-compliant bias current monitor
   SFP+ MSA compliant
   Optical evaluation board available
   Compact 3 mm × 3 mm LFCSP

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