ADN2525 - Analog Devices

ADN2525 10.7 Gbps Active Back-Termination

The ADN2525 laser diode driver is designed for direct modulation of packaged laser diodes having a differential resistance ranging from 5 Ω to 50 Ω. The active back-termination technique provides excellent matching with the output transmission lines while reducing the power dissipation in the output stage. The back-termination in the ADN2525 absorbs signal r.

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 Drives TOSAs with resistances ranging from 5 Ω to 50 Ω 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 Compact 3 mm × 3 mm LFCSP package Voltage input control for bias and modulation currents XFP-compliant bias current monitor Optical evaluation board available GENERAL DESCRIPTION The ADN2525 laser diode driver is d.