Single Port VDSL2
Line Driver with Shutdown
AD8398A
Rev. D
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FEATURES
Voltage feedback
Wide output swing
18.4 V p-p differential, R
LOAD, DIFF
= 20 Ω from 12 V supply
High output current
Linear output current of 450 mA peak
Low distortion
−65 dBc for Profile 8b @ 20.4 dBm
−55 dBc for Profile 17a @ 14.5 dBm
High speed
85 MHz bandwidth (A
V DIFF
= 5)
APPLICATIONS
ADSL2+/VDSL2 CO/CPE line drivers
PLC line drivers
Consumer xDSL modems
Twisted pair line drivers
FUNCTIONAL BLOCK DIAGRAM
NC = NO CONNECT
1NC
2IN A
3+IN A
4GND
11 IN B
12 NC
10 +IN B
9PD1
5
NC
6
NC
7
V
EE
8
PD0
15
NC
16
OUT A
14
V
CC
13
OUT
B
07760-001
+
+
Figure 1. Thermally Enhanced, 4 mm × 4 mm, 16-Lead LFCSP_WQ
TYPICAL APPLICATION DIAGRAM
V
MID
*
TIP
RING
AD8398A
AD8398A
1/2
1/2
*V
MID
=
V
CC
+
V
EE
2
07760-002
Figure 2. Typical VDSL2 Application
GENERAL DESCRIPTION
The AD8398A comprises two high speed, voltage feedback
operational amplifiers. When configured as a differential line
driver, the AD8398A is an ideal choice for ADSL2+, VDSL2, and
power line communications (PLC) applications. It has high
output current, high bandwidth, and fast slew rate, combined
with exceptional multitone power ratio (MTPR) and common-
mode stability. The AD8398A is available in a thermally enhanced
4 mm × 4 mm, 16-lead LFCSP.
The AD8398A incorporates power management functionality
via two CMOS-compatible control pins, PD0 and PD1. These
pins select one of four operating modes: full power, medium
power, low power, or complete power-down. In the power-down
mode, the quiescent current drops to 0.7 mA.
The AD8398A operates in the industrial temperature range of
−40°C to +85°C.
AD8398A* PRODUCT PAGE QUICK LINKS
Last Content Update: 02/23/2017
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DOCUMENTATION
Data Sheet
AD8398A: Single Port VDSL2 Line Driver with Shutdown
Data Sheet
DESIGN RESOURCES
AD8398A Material Declaration
PCN-PDN Information
Quality And Reliability
Symbols and Footprints
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AD8398A
Rev. D | Page 2 of 12
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
Typical Application Diagram.......................................................... 1
General Description......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
Thermal Resistance ...................................................................... 4
Maximum Power Dissipation ..................................................... 4
ESD Caution.................................................................................. 4
Pin Configuration and Function Descriptions............................. 5
Typical Performance Characteristics ..............................................6
Applications Information.................................................................8
Power Control Modes of Operation ...........................................8
Exposed Thermal Pad Connections ...........................................8
Power Supply Bypassing...............................................................8
Board Layout..................................................................................8
Multitone Power Ratio..................................................................9
Lightning and AC Power Fault....................................................9
Outline Dimensions ....................................................................... 10
Ordering Guide .......................................................................... 10
REVISION HISTORY
9/10—Rev. C to Rev. D
Change to General Description Section........................................ 1
3/10—Rev. B to Rev. C
Changes to Figure 14........................................................................ 9
12/09—Rev. A to Rev. B
Changes to Figure 13, Figure 14, and Figure 15 ........................... 9
10/09—Rev. Sp0 to Rev. A
Changed R
LOAD
to R
LOAD, Diff
Throughout........................................ 1
Changes to DC Performance, Differential Input Offset
Voltage Parameter, Table 1 .............................................................. 3
Changes to Figure 4.......................................................................... 5
Changes to Figure 8 and Figure 9................................................... 6
Changes to Exposed Thermal Pad Connections Section............ 8
11/08—Revision Sp0: Initial Version

AD8398ACPZ-RL

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Special Purpose Amplifiers VDSL Dual Line Dvr w/ Shutdown
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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