AD8392AAREZ

Overview

The AD8392AAREZ is a low power, high output current quad operational amplifier configured as a dual-channel ADSL/ADSL2+ line driver. It operates on a single supply from 10 V to 24 V or dual supplies of ±5 V to ±12 V. The device features a differential slew rate of 515 V/µs and a small signal bandwidth of 37 MHz. It delivers a linear output current of 500 mA with a differential output voltage swing up to 42.6 V p-p. Quiescent current ranges from 0.08 mA to 6.5 mA per amplifier depending on the selected bias mode.

Feature Summary

• Integrated power management with three active modes and shutdown state controlled by digital logic pins
• High output drive capability delivering 500 mA peak current for direct line driving
• Low distortion performance suitable for multitone DMT signals in xDSL applications
• Thermally enhanced 28-lead TSSOP_EP package with exposed pad for efficient heat dissipation

Applications

• ADSL and ADSL2+ central office line drivers
• XDSL line driver interfaces
• Digital subscriber line system analog front ends

Procurement Notes

Verify the specific ordering suffix to confirm packaging format. The AD8392AAREZ designation indicates tube packaging, whereas suffixes such as -RL or -R7 denote reel or tape-and-reel options. Confirm RoHS compliance status via the manufacturer's official documentation before procurement. Ensure the component matches the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component for applications requiring high current drive and low power consumption in DSL systems. The device supports flexible power management through programmable bias states to optimize efficiency. Consider the thermal resistance characteristics when designing the PCB layout, particularly regarding the exposed pad connection to the ground plane for adequate heat sinking.

Part Context

The AD8392A belongs to Analog Devices' family of high output current operational amplifiers designed for telecommunications. It integrates four current feedback amplifiers into a single package, optimized for driving telephone lines. The AAREZ variant specifically utilizes a 28-lead Thin Shrink Small Outline Package with an Exposed Pad (TSSOP_EP) to balance performance and thermal management.

Replacement Considerations

The AD8392AAREZ-RL serves as a functional substitute with identical electrical characteristics but differs in packaging format. Both components share the same pinout and performance specifications. Verify that the replacement matches the required supply voltage range and thermal requirements for the specific board design.