AD8392AAREZ-R7

Overview

The AD8392AAREZ-R7 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. Key electrical parameters include a differential slew rate of 515 V/µs, a small-signal bandwidth of 37 MHz, and a linear output current capability of 500 mA. The device features three active power modes plus shutdown, with quiescent currents ranging from 0.08 mA to 6.5 mA per amplifier depending on the bias setting.

Feature Summary

• Integrated digital power management allowing selection among three active bias states and a complete shutdown mode via PD logic pins.
• High peak output drive current of 500 mA capable of delivering sufficient power for central office line driver applications.
• Low distortion performance with second harmonic at -93 dBc and third harmonic at -103 dBc at 1 MHz.
• Current feedback architecture providing high speed and relatively constant bandwidth versus gain.

Applications

• ADSL and ADSL2+ central office (CO) line drivers
• XDSL line driver interfaces
• Differential driver circuits for digital subscriber line systems

Procurement Notes

Verify the specific ordering suffix R7 indicates reel packaging when sourcing this component. Confirm RoHS compliance status through official manufacturer documentation, as indicated by the Z suffix in similar part numbers within the series. Ensure the source document matches the AD8392A datasheet Rev. A for accurate specifications.

Selection Notes

Select this component for applications requiring high output current and low power consumption in xDSL systems. Consider the thermal resistance characteristics of the TSSOP_EP package if operating near maximum power dissipation limits. Evaluate the available power modes to optimize system efficiency based on required line drive levels.

Part Context

This part belongs to the AD8392A family of low-power, high-output current amplifiers designed specifically for DSL line driving. It integrates four current-feedback amplifiers into a single package, offering a compact solution for central office interface requirements compared to discrete amplifier implementations.

Replacement Considerations

Publicly confirmed substitutes include other variants within the AD8392A family such as the AD8392AACPZ series, which utilizes an LFCSP package but shares identical electrical characteristics and functionality.

FAQ

How is the power consumption managed in the AD8392A?

Power consumption is managed through two sets of digitally programmable logic pins (PD0 and PD1). These allow configuration into three active power modes or a shutdown state, enabling optimization of quiescent current based on application needs.

What is the maximum supply voltage range for the AD8392A?

The device can operate from a single supply of 10 V to 24 V or dual supplies ranging from ±5 V to ±12 V.