PRODUCT DESCRIPTION

The AD8018 is intended for use in single-supply (5 V) xDSL modems where high-output current and low distortion are essential to achieve maximum reach. The dual high-speed amplifiers are capable of driving low distortion signals to within 0.5 V of the power supply rail.

FEATURES

Ideal xDSL Line Drive Amplifier for USB, PCMCIA, or

PCI-Based Customer Premise Equipment (CPE). The

AD8018 provides maximum reach on 5 V supply,

driving 16 dBm of power into a back-terminated,

transformer-coupled 100 Ω while maintaining –82 dBc

of out-of-band SFDR.

Rail-to-Rail Output Voltage and High Output Current

Drive

400 mA Output Current into Differential Load of 10 Ω

@ 8 V p-p

Low Single-Tone Distortion

–86 dBc Worst Harmonic, 6 V p-p into Differential 10 Ω

@ 100 kHz

Low Noise

4.5 nV/√Hz Voltage Noise Density, 100 kHz

Out-of-Band SFDR = –82 dBc, 144 kHz to 500 kHz,

RLOAD = 12.5 Ω, PLINE = 13 dBm

Low-Power Operation

3.3 V to 8 V Power Supply Range

Two Logic Bits for Standby and Shutdown

Low Supply Current of 9 mA/Amplifier (Typ)

Current Feedback Amplifiers

High Speed

130 MHz Bandwidth (–3 dB)

300 V/μs Slew Rate

APPLICATIONS

xDSL USB, PCI, PCMCIA Cards

Consumer DSL Modems

Twisted Pair Line Driver