PRODUCT DESCRIPTION

The AD8391 consists of two parallel, low cost xDSL line drive amplifiers capable of driving low distortion signals while running on both 3 V to 12 V single-supply or equivalent dual-supply rails. It is primarily intended for use in single-supply xDSL systems where low power is essential, such as line powered and battery backup systems. Each amplifier output drives more than 250 mA of current while maintaining –82 dBc of SFDR at 100 kHz on 12 V, outstanding performance for any xDSL CPE application.

FEATURES

Ideal xDSL Line Driver for VoDSL or Low Power

Applications such as USB, PCMCIA, or PCI Based

Customer Premise Equipment (CPE)

High Output Voltage and Current Drive

340 mA Output Drive Current

Low Power Operation

3 V to 12 V Power Supply Range

1-Pin Logic Controlled Standby, Shutdown

Low Supply Current of 19 mA (Typical)

Low Distortion

–82 dBc SFDR, 12 V p-p into Differential 21 Ω @ 100 kHz

4.5 nV/√Hz Input Voltage Noise Density, 100 kHz

Out-of-Band SFDR = –72 dBc, 144 kHz to 500 kHz,

ZLINE = 100 Ω, PLINE = 13.5 dBm

High Speed

40 MHz Bandwidth (–3 dB)

375 V/μs Slew Rate

APPLICATIONS

VoDSL Modems

xDSL USB, PCI, PCMCIA Cards

Line Powered or Battery Backup xDSL Modems