ADN2871ACPZ-RL

Overview

The ADN2871ACPZ-RL is a single-loop laser diode driver designed for advanced SFP and SFF modules compliant with SFF-8472 digital diagnostics. It supports data rates from 50 Mbps to 4.25 Gbps. The device operates on a 3.3 V supply and features automatic average power control via monitor photodiode feedback. It includes bias current monitoring (2 mA to 100 mA) and modulation current monitoring (5 mA to 90 mA). The component provides fail alarms, automatic laser shutdown, and voltage or resistor setpoint control. It is housed in a 4 mm × 4 mm LFCSP package.

Feature Summary

• Supports operation from 50 Mbps to 4.25 Gbps with typical rise/fall time of 60 ps
• Enables automatic average power control using feedback from a monitor photodiode
• Provides laser fail alarm and automatic laser shutdown (ALS) functionality
• Interfaces easily with MicroConverter devices and limiting amplifiers for complete transceiver solutions

Applications

• Advanced SFP module designs
• SFF module implementations
• VCSEL, DFB, and FP laser support applications
• Complete SFP/SFF transceiver solutions

Procurement Notes

Verify the specific suffix RL indicates reel packaging when sourcing. Confirm availability status as supply may be limited or subject to factory special orders. Ensure compatibility with SFF-8472 digital diagnostic requirements for your target module design. Check for pin-compatibility if migrating from dual-loop drivers like the ADN2870.

Selection Notes

Select this component for single-loop laser control applications requiring high-speed data transmission up to 4.25 Gbps. It is suitable for designs needing integrated bias and modulation current monitoring alongside automatic power stabilization. Consider its pin-compatibility with the ADN2870 if future dual-loop upgrades are anticipated within the same PCB layout constraints.

Part Context

The ADN2871 belongs to the Analog Devices laser diode driver family, specifically tailored for optical transceivers. It complements the ADN289x series of limiting amplifiers and ADuC70xx MicroConverters. This integration allows for streamlined development of compliant SFP and SFF optical modules without requiring external complex control circuitry.

Replacement Considerations

The ADN2870 is a pin-compatible dual-loop alternative. Designers can use the same PCB layout for either device. For dual-loop control applications, refer to the ADN2870 datasheet.