AD8018ARZ-REEL

Overview

The AD8018ARZ-REEL is a dual high-speed current feedback amplifier designed for xDSL line driving applications. It operates on a single supply voltage ranging from 3.3 V to 8 V, with typical operation at 5 V. The device delivers a large signal bandwidth of 130 MHz and a slew rate of 300 V/µs. Each channel provides a linear output current of 400 mA into a differential load while maintaining low distortion characteristics, including an out-of-band SFDR of –82 dBc. The quiescent supply current is typically 9 mA per amplifier.

Feature Summary

• Rail-to-rail output voltage swing capability
• High output current drive of 400 mA
• Low noise performance with 4.5 nV/√Hz density
• Digital standby and shutdown control modes

Applications

• xDSL USB, PCI, and PCMCIA cards
• Consumer DSL modems
• Twisted pair line drivers

Procurement Notes

Verify the specific ordering suffix matches the required packaging format. The REEL7 suffix indicates tape and reel packaging, which differs from tube packaging. Confirm package type compatibility with PCB assembly processes. Ensure logic input levels align with system control voltages. Check thermal dissipation requirements against ambient operating conditions.

Selection Notes

Select this component for applications requiring high output current and rail-to-rail output swing in compact packages. The current feedback architecture offers bandwidth stability independent of closed-loop gain. Consider the available power-down modes for systems requiring low standby current. Evaluate thermal management needs based on the selected package option and maximum power dissipation limits.

Part Context

This part belongs to the AD8018 family of high-speed amplifiers fabricated using Analog Devices' XFCB process. The family includes variants in 8-lead SOIC and 14-lead TSSOP packages. The REEL7 suffix specifically denotes the tape and reel packaging configuration for automated assembly.

Replacement Considerations

Direct functional replacements within the same family include other AD8018 variants with different packaging options such as the standard tube version or the TSSOP package variant. Verify pinout compatibility when substituting between SOIC and TSSOP footprints.