ADN2531ACPZ-R7

Overview

The ADN2531ACPZ-R7 is an 11.3 Gbps differential laser diode driver featuring active back-termination, designed for directly modulated lasers including VCSELs, Fabry-Perot, and DFB types. It operates on a single 3.3 V supply with typical rise/fall times of 26 ps. The bias current ranges from 10 mA to 100 mA, while the differential modulation current spans 10 mA to 80 mA. Input sensitivity is 150 mV p-p differential. The device supports automatic laser shutdown and crosspoint adjustment, housed in a compact 3 mm × 3 mm LFCSP package.

Feature Summary

• Active back-termination absorbs signal reflections to maintain optical eye quality despite transmission line mismatches.
• Supports multiple laser diode types including VCSEL, Fabry-Perot, and distributed feedback lasers.
• Includes automatic laser shutdown and crosspoint adjustment capabilities for enhanced system control.

Applications

• Optical transmitters for SONET/SDH applications up to 11.3 Gbps
• Ethernet and Fibre Channel optical modules
• SFF/SFP/XFP/SFP+ MSA compliant optical subassemblies

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix matches the required reel packaging configuration. Ensure the LFCSP-16 footprint aligns with your PCB design constraints. Check for moisture sensitivity level compliance prior to assembly. Validate that the active back-termination features meet your specific optical module impedance requirements.

Selection Notes

Select this driver when high-speed operation up to 11.3 Gbps is required with minimal external components. The integrated active back-termination simplifies design by handling transmission line reflections without additional termination circuits. Consider the compact 3 mm × 3 mm package size for space-constrained optical subassemblies. Ensure the 3.3 V single-supply architecture fits your power budget. Verify compatibility with the target laser diode's modulation current range.

Part Context

The ADN2531 belongs to Analog Devices' family of high-speed laser diode drivers optimized for optical communication modules. It complements other ADN series components like the ADN2871 and ADN2812, targeting different data rates and interface standards. This part specifically addresses the needs of SFP+ and XFP form factors requiring robust performance in compact packages.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.