ADN2847ACPZ-48

Laser Drivers Overview

The ADN2847ACPZ-48 is a laser diode driver from Analog Devices, designed for optical communication systems. It operates at data rates from 50 Mbps to 3.3 Gbps with a single 3.3 V supply. The device features dual-loop control for average power and extinction ratio, eliminating the need for external components for these functions. Key electrical parameters include a bias current range of 2 mA to 100 mA, modulation current up to 80 mA, and monitor photodiode current support from 50 μA to 1200 μA. It integrates programmable alarms for laser fail and degrade conditions.

Laser Drivers Feature Summary

• Dual-loop closed-loop control for precise regulation of laser average power and extinction ratio
• Integrated automatic laser shutdown (ALS) functionality for safety compliance
• Programmable alarm outputs for detecting laser failure and degradation states

Laser Drivers Applications

• SONET OC-1/3/12/48 and SDH STM-0/1/4/16 transmission systems
• Fibre Channel interfaces
• Gigabit Ethernet applications
• DWDM wavelength control using dual monitor photodiodes

Laser Drivers Procurement Notes

Verify component authenticity through authorized channels due to restricted supply status. Confirm RoHS compliance details via official documentation before integration. Ensure handling procedures account for moisture sensitivity classification. Validate pinout compatibility with target PCB layout. Review datasheet revisions for any process changes affecting performance specifications.

Laser Drivers Selection Notes

Select this driver for designs requiring integrated power and extinction ratio control without external feedback loops. Suitable for applications needing dual MPD support for DWDM systems. Consider the 48-lead LFCSP package constraints for thermal management. Evaluate the 50 mA supply current against system power budgets. Verify that the 3.3 V single-supply operation aligns with available voltage rails.

Laser Drivers Part Context

This component belongs to the ADN2847 series of laser drivers manufactured by Analog Devices. It is part of a family of optical interface solutions targeting high-speed serial communications. The ADN2847ACPZ-48 specifically utilizes a 48-lead LFCSP package, distinguishing it from other variants in the series that may offer different pin counts or performance tiers.

Laser Drivers Replacement Considerations

The ADN2848 is a related variant within the same product family, offering similar dual-loop control capabilities but potentially differing in maximum data rate or specific electrical characteristics. Verify pin-to-pin compatibility and parameter alignment before substitution.