AD8016AREZ

Overview

The AD8016AREZ is a dual, low-power, high-output current xDSL line driver designed for central office applications. It operates on ±3 V to ±13 V supplies with a typical quiescent current of 12.5 mA per amplifier at full bias. The device features a 78 MHz bandwidth (G = +5), a 1000 V/μs slew rate, and delivers up to 600 mA linear output current into low resistance loads. Input voltage noise density is typically 2.6 nV/√Hz. It includes digital power-down control and thermal shutdown protection.

Feature Summary

• High output current capability supporting 400 mA linear drive and 600 mA peak drive for low impedance loads.
• Integrated digital power management allowing four programmable bias levels via PWDN logic inputs.
• On-chip thermal shutdown protection that triggers at 165°C junction temperature with an alarm signal output.
• Low single-tone distortion performance suitable for ADSL, HDSL2, and VDSL line driving interfaces.

Applications

• ADSL central office line drivers
• HDSL2 system interfaces
• VDSL line drivers
• Proprietary xDSL systems

Procurement Notes

Verify the package type matches the specific suffix; the AREZ designation indicates a 28-lead TSSOP_EP package. Confirm the revision level against the latest Analog Devices datasheet to ensure pinout and electrical specifications remain consistent. Check for any product discontinuance notifications or lifecycle status updates prior to finalizing procurement plans.

Selection Notes

Select this component when designing xDSL central office terminals requiring high output current into low resistance loads like 50 Ω or 100 Ω. The integrated power-down states allow optimization of efficiency versus multitone power ratio performance. Ensure adequate PCB copper area for thermal dissipation given the plastic encapsulation limits.

Part Context

The AD8016 series consists of dual amplifiers specifically engineered for digital subscriber line applications. The AREZ variant utilizes a 28-lead Thin Shrink Small Outline Package with an exposed paddle for improved thermal performance. This packaging supports the high power dissipation requirements inherent in driving DSL lines from central office equipment.

Replacement Considerations

Publicly confirmed substitutes are not identified in the provided documentation. Verify compatibility with existing board layouts and thermal constraints if considering alternative high-current current-feedback amplifiers from other manufacturers.