AD8018AR-REEL7

Overview

The AD8018AR-REEL7 is a dual high-speed current feedback amplifier designed for single-supply xDSL applications. It operates on a 3.3 V to 8 V supply with a typical quiescent current of 9 mA per amplifier. The device features a 130 MHz bandwidth, 300 V/µs slew rate, and rail-to-rail output capability. Each channel delivers 400 mA into a 10 Ω differential load while maintaining low distortion, including -82 dBc out-of-band SFDR at +13 dBm line power.

Feature Summary

• Rail-to-rail output voltage swing within 0.5 V of supply rails
• High output current drive of 400 mA into differential loads
• Low-power operation with standby and shutdown modes via logic control
• Optimized for low-distortion signal driving in xDSL systems

Applications

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

Procurement Notes

Verify the specific package configuration against the datasheet ordering guide, as suffixes indicate reel packaging variations. Confirm that the component meets RoHS compliance requirements for the intended market. Ensure the source documentation matches the manufacturer's official specifications for the AD8018 series to guarantee functional equivalence.

Selection Notes

Select this component for designs requiring high output current and low distortion in single-supply environments. The TSSOP-14 package offers dedicated power-down logic pins for flexible power management. Ensure adequate decoupling and thermal management are implemented, particularly when operating near maximum supply voltages or delivering high line power.

Part Context

The AD8018 is part of Analog Devices' specialized line driver family, fabricated using the XFCB process technology. This architecture enables high bandwidth and fast slew rates while minimizing power consumption. The device is specifically engineered to meet the stringent performance requirements of ADSL, SDSL, and VDSL customer premise equipment.

Replacement Considerations

Direct replacements must match the dual-channel current feedback topology and 400 mA output capability. Verify pin compatibility between SOIC-8 and TSSOP-14 variants if changing packages. Ensure any substitute supports the required 3.3 V to 8 V supply range and maintains similar distortion characteristics for xDSL applications.