Low Power, High Output Current, Quad Op

Amp, Dual-Channel ADSL/ADSL2+ Line Driver

AD8392A

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

500 mA peak output drive current

42.6 V p-p differential output voltage

Low distortion

−93 dBc @1 MHz second harmonic

−103 dBc @ 1 MHz third harmonic

High speed: 515 V/μs differential slew rate

Additional functionality of AD8392AACP

On-chip, common-mode voltage generation

APPLICATIONS

ADSL/ADSL2+ CO line drivers

XDSL line drives

GENERAL DESCRIPTION

The AD8392A 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.

The AD8392A is available in two thermally enhanced packages,

a 28-lead TSSOP/EP (AD8392AARE) and a 5 mm × 5 mm,

32-lead LFCSP (AD8392AACP). Four bias modes are available

via the use of two digital bits (PD1, PD0).

common-mode voltage generation.

The low power consumption, high output current, high output

voltage swing, and robust thermal packaging enable the

AD8392A to be used as the CO line drivers in ADSL and other

xDSL systems.

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

AD8392A

PD0 1, 2

PD1 1, 2

NC

NC

NC

NC

GND

NC

NC

PD0 3, 4

PD1 3, 4

GND

1

34

2

Figure 1. AD8392AARE, 28-Lead TSSOP/EP

NC = NO CONNECT

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

AD8392A

NC

NC

NC

NC

NC

NC

1

3

2

4

Figure 2. AD8392AACP, 5 mm × 5 mm, 32-Lead LFCSP