Analog Devices Inc. ADN2525ACPZ-REEL7

Description
The ADN2525 is a laser diode driver designed for direct modulation of packaged laser diodes with differential resistance ranging from 5 to 50 ohms. It utilizes active back-termination to provide excellent matching with output transmission lines while reducing power dissipation in the output stage. This back-termination absorbs signal reflections from the TOSA end of the output transmission lines, enabling excellent optical eye quality even when the TOSA end is significantly mismatched. The compact 3 mm x 3 mm LFCSP package makes it suitable for modules where laser diodes are packaged in low pin-count optical subassemblies.

Features
Up to 10.7 Gbps operation
Very low power: 670 mW (IBIAS=40 mA, IMOD = 40 mA)
Typical 24 ps rise/fall times
Full back-termination of output transmission lines
Compatible with XMD-MSA TOSA
Drives TOSAs with resistances ranging from 5 to 50 ohms
PECL-/CML-compatible data inputs
Bias current range: 10 mA to 100 mA
Differential modulation current range: 10 mA to 80 mA
Automatic laser shutdown (ALS)
3.3 V operation
Voltage input control for bias and modulation currents
XFP-compliant bias current monitor
Optical evaluation board available

Applications
SONET OC-192 optical transceivers
SDH STM-64 optical transceivers
10 Gb Ethernet optical transceivers
XFP/X2/XENPAK/XPAK/MSA 300 optical modules
SR and VSR optical links