REV. A

a

AD8016

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

World Wide Web Site: http://www.analog.com

Fax: 781/326-8703

© Analog Devices, Inc., 2000

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

Low Power, High Output Current

xDSL Line Driver

PIN CONFIGURATION

FEATURES

xDSL Line Driver that Features Full ADSL CO (Central

Office) Performance on

12 V Supplies

Low Power Operation

5 V to

12 V Voltage Supply

12.5 mA/Amp (Typ) Total Supply Current

Power-Reduced Keep-Alive Current of 4.5 mA/Amp

High Output Voltage and Current Drive

,

12 V

Low Single Tone Distortion

,

High Speed

78 MHz Bandwidth (–3 dB), G = +5

40 MHz Gain Flatness

1000 V/ s Slew Rates

PRODUCT DESCRIPTION

The AD8016 high output current dual amplifier is designed

for the line drive interface in Digital Subscriber Line systems

such as ADSL, HDSL2, and proprietary xDSL systems. The

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

output power into low resistance loads, enough to power a

20.4 dBm line, including hybrid insertion loss.

FREQUENCY – kHz

549.3 550.3 551.3 552.3 553.3 554.3 555.3 556.3 557.3 558.3 559.3

–75dBc

±12 V, 20.4 dBm

Output Power into 100

Ω, Downstream

24-Lead Batwing

(RB-24)

20-Lead PSOP3

(RP-20)

20

19

18

17

16

15

14

13

12

11

1

2

3

4

5

6

7

8

9

10

AD8016

NC = NO CONNECT

+V1

+V2

NC

NC

NC

PWDN0

DGND

–V1

NC

NC

NC

PWDN1

BIAS

–V2

24

23

22

21

20

19

18

17

16

15

14

13

1

2

3

4

5

6

7

8

9

10

11

12

AD8016

NC = NO CONNECT

+V1

+V2

AGND

AGND

AGND

AGND

PWDN0

DGND

–V1

NC

AGND

AGND

AGND

PWDN1

BIAS

–V2

NC

AGND

28-Lead HTSSOP

(RE-28)

NC

NC

NC

BIAS

–V2

+V1

+V2

PWDN1

DGND

–V1

PWDN0

NC = NO CONNECT

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

28

27

26

25

24

23

22

21

20

19

18

17

16

15

1

2

3

4

5

6

7

8

9

10

11

12

13

14

AD8016ARE

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

mally enhanced 20-lead PSOP, and a 28-lead HTSSOP with

an exposed leadframe (ePAD). 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 dBm of power downstream using the xDSL 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-

ance at the amplifier outputs for back termination.

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 xDSL systems.