AD8016 Low Power, High Output Current xDSL Line Driver Data Sheet Manual

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Low Power, High Output Current /D IV x DSL Line Driver

AD8016

PIN CONFIGURATIONFEATURES

20-Lead PSOP3 24-Lead Batwing

x DSL Line Driver that Features Full ADSL CO (Central

(RP-20) (RB-24)

Office) Performance on
12 V Supplies Low Power Operation

5 V to
12 V Voltage Supply

VOUT1 VOUT2 VOUT1 VOUT2

12.5 m A/Amp (Typ) Total Supply Current VINN2

VINN1 VINN1 VINN2

Power-Reduced Keep-Alive Current of 4.5 m A/Amp VINP1 VINP2 VINP1 VINP2 High Output Voltage and Current Drive NC NC AGND AGND

AD8016

IOUT = 600 m A NC NC AGND AGND

AD8016

40 V p-p Differential Output Voltage RL = 50 , NC NC AGND AGND VS =
12 V PWDN0 PWDN1 AGND AGND DGND BIAS PWDN0 PWDN1

Low Single Tone Distortion

–V1 –V2 DGND BIAS

–75 d Bc @ 1 MHz SFDR, RL = 100 , VO = 2 V p-p

MTPR = –75 d Bc, 26 k Hz to 1.1 MHz, ZLINE = 100 , NC = NO CONNECT –V2 NC NC

PLINE = 20.4 d Bm

NC = NO CONNECT

High Speed

78 MHz Bandwidth (–3 d B), G = +5 28-Lead HTSSOP 40 MHz Gain Flatness (RE-28)

1000 V/s Slew Rates

NC NC NC NC NC NC

+VIN2 NC

PRODUCT DESCRIPTION

–VIN2 PWDN1

The AD8016 high output current dual amplifier is designed

VOUT2 BIAS

for the line drive interface in Digital Subscriber Line systems

such as ADSL, HDSL2, and proprietary x DSL systems. The AD8016ARE

drivers are capable, in full-bias operation, of providing 24.4 d Bm

VOUT1 DGND

output power into low resistance loads, enough to power a

–VIN1 NC

20.4 d Bm line, including hybrid insertion loss.

+VIN1 PWDN0

NC NC NC NC NC NC

NC = NO CONNECT

The AD8016 is available in a low cost 24-lead SOIC, a ther-

–75d Bc

mally enhanced 20-lead PSOP, and a 28-lead HTSSOP with an exposed leadframe (e PAD). Operating from ±12 V supplies, the AD8016 requires only 1.5 W of total power dissipation (refer to the Power Dissipation section for details) while driving 20.4 d Bm of power downstream using the x DSL hybrid in Figure 33a and Figure 33b. Two digital bits (PWDN0, PWDN1) allow the driver to be capable of full performance, an output “keep-alive state,” or two intermediate bias states. The “keep-alive” state

biases the output transistors enough to provide a low imped-

FREQUENCY – k Hz

ance at the amplifier outputs for back termination.

Figure 1. Multitone Power Ratio; VS = ±12 V, 20.4 d Bm

Output Power into 100 Ω, Downstream The low power dissipation, high output current, high output voltage swing, flexible power-down, and robust thermal packaging enable the AD8016 to be used as the Central Office (CO) terminal driver in ADSL, HDSL2, VDSL, and proprietary x DSL systems.

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otherwise under any patent or patent rights of Analog Devices. Fax: 781/326-8703 © Analog Devices, Inc., 2000