Low Power, High Output Current, Quad Op Amp,

Dual-Channel ADSL/ADSL2+ Line Driver

AD8392

Rev. 0

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FEATURES

Four current feedback, high current amplifiers

Ideal for use as ADSL/ADSL2+ dual-channel Central Office

(CO) line drivers

Low power operation

Power supply operation from ±5 V (+10 V) up to ±12 V (+24 V)

Less than 3 mA/Amp quiescent supply current for full

power ADSL/ADSL2+ CO applications (20.4 dBm line

power, 5.5 CF)

Three active power modes plus shutdown

High output voltage and current drive

400 mA peak output drive current

44 V p-p differential output voltage

Low distortion

−72 dBc @1 MHz second harmonic

−82 dBc @ 1 MHz third harmonic

High speed: 900 V/µs differential slew rate

Additional functionality of AD8392ACP

On-chip common-mode voltage generation

APPLICATIONS

ADSL/ADSL2+ CO line drivers

XDSL line drives

High output current, low distortion amplifiers

DAC output buffer

GENERAL DESCRIPTION

The AD8392 is comprised of four high output current, low

power consumption, operational amplifiers. It is particularly

well suited for the CO driver interface in digital subscriber line

systems, such as ADSL and ADSL2+. The driver is capable of

providing enough power to deliver 20.4 dBm to a line, while

compensating for losses due to hybrid insertion and back

termination resistors. In addition, the low distortion, fast slew

rate, and high output current capability make the AD8392 ideal

for many other applications, including medical, instrumenta-

tion, DAC output drivers, and other high peak current circuits.

The AD8392 is available in two thermally enhanced packages, a

28-lead TSSOP EP (AD8392ARE) and a 5 mm × 5 mm 32-lead

LFCSP (AD8392ACP). Four bias modes are available via the use

of two digital bits (PD1, PD0).

PIN CONFIGURATIONS

1

2

3

4

5

6

7

8

9

10

11

12

13

14

NC = NO CONNECT

28

27

26

25

24

23

22

21

20

19

18

17

16

15

AD8392

PD0 1, 2

PD1 1, 2

NC

NC

NC

NC

GND

NC

NC

PD0 3, 4

PD1 3, 4

GND

1

3

2

4

Figure 1. AD8392ARE, 28-Lead TSSOP/EP

1

2

3

4

5

6

7

8

910 11

12

13 14

24

23

22

21

20

19

18

17

16

15

32 31 30

29

28 27

25

26

AD8392

NC

NC

NC

NC

NC

NC

1

3

2

4

Figure 2. AD8392ACP, 32-Lead LFCSP 5 mm × 5 mm

common mode voltage generation.

The low power consumption, high output current, high output

voltage swing, and robust thermal packaging enable the AD8392

to be used as the CO line drivers in ADSL and other xDSL sys-

tems, as well as other high current, single-ended or differential

amplifier applications.