PRODUCT DESCRIPTION

The AD8019 is a low cost xDSL line driver optimized to drive a minimum of 13 dBm into a 100 ? load while delivering outstanding distortion performance. The AD8019 is designed on a 24 V high-speed bipolar process enabling the use of ±12 V power supplies or 12 V only. When operating from a single 12 V supply the highly efficient amplifier architecture can typically deliver 170 mA output current into low impedance loads through a 1:2 turns ratio transformer. Hybrid designs using ±12 V supplies enable the use of a 1:1 turns ratio transformer, minimizing attenuation of the receive signal. The AD8019 typically draws 9 mA/ amplifier quiescent current. A 1-bit digital power down feature reduces the quiescent current to approximately 1.6 mA/amplifier.

FEATURES

Low Distortion, High Output Current Amplifiers

Operate from 12 V to ±12 V Power Supplies,

Ideal for High-Performance ADSL CPE, and xDSL Modems

Low Power Operation

9 mA/Amp (Typ) Supply Current

Digital (1-Bit) Power-Down

Voltage Feedback Amplifiers

Low Distortion

Out-of-Band SFDR –80 dBc @ 100 kHz into 100 Line

High Speed

175 MHz Bandwidth (–3 dB), G = +1

400 V/μs Slew Rate

High Dynamic Range

VOUT to within 1.2 V of Power Supply

APPLICATIONS

ADSL, VDSL, HDSL, and Proprietary xDSL USB, PCI, PCMCIA Modems, and Customer Premise Equipment (CPE)