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