ADN2847ACPZ-32-RL7

Laser Drivers Overview

The ADN2847ACPZ-32-RL7 is a dual-loop laser diode driver from Analog Devices, designed for optical transmission systems operating at data rates from 50 Mbps to 3.3 Gbps. It utilizes a unique control algorithm to manage both average power and extinction ratio following factory setup. The device operates on a single 3.3 V supply with a typical rise/fall time of 80 ps. Key electrical parameters include a bias current range of 2 mA to 100 mA, a modulation current range of 5 mA to 80 mA, and a monitor photodiode current range of 50 μA to 1200 μA. It features closed-loop control, full current parameter monitoring, and automatic laser shutdown capabilities.

Laser Drivers Feature Summary

• Dual-loop control architecture for simultaneous management of average optical power and extinction ratio
• Integrated programmable alarms for laser fail and laser degrade detection
• Supports dual monitor photodiode functionality specifically for DWDM wavelength control applications
• Includes automatic laser shutdown (ALS) mechanism for safety compliance

Laser Drivers Applications

• SONET OC-1/3/12/48 and SDH STM-0/1/4/16 transmission systems
• Fibre Channel interfaces
• Gigabit Ethernet links
• DWDM systems requiring dual MPD wavelength control

Laser Drivers Procurement Notes

Verify the specific suffix -RL7 against the manufacturer's official documentation to confirm reel packaging specifications and quantity. Ensure compatibility with existing PCB footprints for the 32-lead LFCSP package. Confirm that the component meets all relevant RoHS directives and environmental standards required for your deployment region before finalizing procurement orders.

Laser Drivers Selection Notes

Select this component when designing optical transceivers requiring integrated dual-loop control for both power and extinction ratio without external complex circuitry. It is suitable for applications needing high-speed operation up to 3.3 Gbps with low external component count. Consider its suitability for DWDM environments due to the specific support for dual monitor photodiodes and precise current monitoring capabilities.

Laser Drivers Part Context

This part belongs to the ADN2847 series of laser drivers manufactured by Analog Devices. It is distinct from other ADN28xx series components like the ADN2848 or ADN2870, which may offer different speed ranges or pin configurations. The ADN2847 is specifically engineered for high-performance optical networking applications requiring robust laser control and monitoring features within a compact surface-mount package.

Laser Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult Analog Devices technical support for qualified alternatives if this specific part number is unavailable.