AD8394AREZ-RL

Overview

The AD8394AREZ-RL is a quad operational amplifier designed for high output current and low power consumption. It features four current feedback amplifiers with a slew rate of 300 V/μs. The device supports dual-supply operation from ±6 V to ±12 V or single-supply operation from 12 V to 24 V. Internal power dissipation is 700 mW while driving a 20.4 dBm ADSL2+ signal with a coupling factor of 5.5. It offers selectable bias modes via digital inputs and provides an MTPR down to −70 dBc.

Feature Summary

• Four high output current, low power current feedback amplifiers
• Three active power modes plus shutdown with low leakage current
• High speed performance with 300 V/μs slew rate
• Low distortion characteristics suitable for line driver interfaces

Applications

• ADSL/ADSL2+ central office (CO) line drivers
• xDSL line drivers
• DAC output buffers
• Medical instrumentation requiring high peak current

Procurement Notes

Verify component status as the datasheet indicates this part is obsolete. Confirm availability through authorized distributors or secondary market sources. Ensure the specific AREZ package variant matches design requirements. Check for end-of-life notices or recommended replacement parts from Analog Devices before finalizing procurement plans.

Selection Notes

Select this component for applications requiring high output current drive and low power dissipation in DSL systems. Consider the 20-lead TSSOP_EP package for thermal management. Evaluate the need for digital control of bias modes to optimize power consumption. Ensure supply voltage ranges align with system architecture, supporting both dual and single-supply configurations.

Part Context

The AD8394 belongs to Analog Devices' specialized amplifier portfolio, tailored for broadband communication interfaces. It integrates multiple amplifiers into a single package to reduce board space. The AREZ suffix denotes the thermally enhanced TSSOP_EP package. This series addresses the demands of high-performance line drivers in digital subscriber line infrastructure.

Replacement Considerations

The datasheet marks the AD8394 as obsolete. Engineers should consult Analog Devices for officially confirmed substitute components that maintain pin compatibility and electrical specifications. Verify that any replacement supports the required ADSL/ADSL2+ standards and power modes.