ADLD8403ACPZ-R2

Overview

The ADLD8403ACPZ-R2 is a dual-port ADSL/ADSL2+ line driver featuring two differential current feedback amplifiers with integrated feedback resistors and biasing networks. It operates from a single 12.5 V supply, delivering up to 20.4 dBm of line power using Adaptive Linear Power (Class H) technology. The device provides a differential output voltage swing of 43.4 V and maintains a typical multitone power ratio (MTPR) of -65 dBc across the 26 kHz to 2.2 MHz band. Total power dissipation is less than 600 mW per channel at 20.4 dBm output. It includes shutdown controls for enhanced power savings and is housed in a 20-lead LFCSP package.

Feature Summary

• Integrates two high-output current differential amplifiers with internal feedback resistors and biasing networks.
• Utilizes Adaptive Linear Power architecture to achieve low power consumption via signal-tracking dynamic supplies.
• Includes programmable shutdown pins for individual channels and charge pump control to minimize quiescent current.
• Designed for robust operation with low distortion and compliance with ITU-T-K20 and GR-1089 standards.

Applications

• ADSL/ADSL2+ central office line drivers
• DSLAM interface circuits
• Digital subscriber line access multiplexor systems

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or direct manufacturer channels. Confirm RoHS compliance status indicated by the 'Z' suffix in the ordering guide. Ensure storage conditions adhere to moisture sensitivity levels specified in the datasheet to prevent package damage during soldering processes.

Selection Notes

Select this component for applications requiring efficient power management in DSLAM environments. The fixed gain of 13 V/V and integrated feedback network simplify circuit design compared to discrete solutions. Consider the thermal resistance characteristics of the LFCSP package when designing PCB layouts for adequate heat dissipation under maximum load conditions.

Part Context

This part belongs to the ADLD8403 family of dual-channel line drivers. Variants such as the ADLD8403ACPZ-R7 and ADLD8403ACPZ-RL share identical electrical specifications but differ in packaging quantities. The ACPZ designation specifically denotes the 20-lead Lead Frame Chip Scale Package suitable for surface-mount assembly.

Replacement Considerations

Direct replacements within the same family include ADLD8403ACPZ-R7 and ADLD8403ACPZ-RL. These alternatives offer identical pinouts and performance characteristics, differing only in reel packaging configurations for manufacturing integration.