AD8390:  Low Power, DSL CO Driver Amplifier

The AD8390 high output current - low power consumption amplifier is particularly well suited for the Central Office driver interface in Digital Subscriber Line systems such as ADSL, SDSL and VDSL. ...More

For more information about the AD8390 or to inquire about samples, contact the High Current Driver Development Group.

AD8390:  Low Power, DSL CO Driver Amplifier

Product Description

The AD8390 high output current - low power consumption amplifier is particularly well suited for the Central Office driver interface in Digital Subscriber Line systems such as ADSL, SDSL and VDSL. The driver is capable, in full bias operation, of providing 24.4dBm output power into low resistance loads, enough to power a 20.4dBm line, while compensating for losses due to hybrid insertion and back termination resistors.

Four power modes controlled by two digital bits allow the driver bias current to be varied so as to be capable of full performance output 'keep alive state', or two intermediate bias states. Additional bias flexibility is provided from the Iadj pin, which allows fine quiescent current trimming to tailor the performance of the AD8390.

The low power consumption, high output current, high output voltage swing and robust efficient packaging enable the AD8390 to be used as the Central Office (CO) terminal driver in ADSL, VDSL and proprietary xDSL systems.

Features

  • Voltage feedback amplifier
    Ideal for ADSL and ADSL2+ central office (CO) and customer premises equipment (CPE) applications
    Enables high current differential applications
  • Low power operation:
    Single- or dual-power supply operation from 10 V (±5 V) up to 24 V (±12 V)
    4 mA total quiescent supply current for full power ADSL and ADSL2+ CO applications
    Adjustable supply current to minimize power consumption
  • High output voltage and current drive:
    400 mA peak output drive current
    44.2 V p-p differential output voltage
  • Low distortion:
    –82 dBc @ 1 MHz second harmonic
    –91 dBc @ 1 MHz third harmonic
  • High speed:
    300 V/µs differential slew rate

Diagrams

AD8390 Diagram
Functional Block Diagram for AD8390

Specifications

Application DSL
Function Driver
Voltage Supply (V) +/- 12
Minimum Gain (Acl) 5
-3 dB BW (MHz) 100MHz
Slew Rate (V/us) 300V/µs
Iout Drive (mA) 0
Distortion (dBc) -82dBc
Spectral Noise (nV/rtHz) 8nV/rtHz
Package 16-Lead QSOP

Explore Other Products

Part# Application Function Voltage Supply (V) Minimum Gain (Acl) -3 dB BW (MHz) Slew Rate (V/us) Iout Drive (mA) Distortion (dBc) Spectral Noise (nV/rtHz) Price* (1000-4999)
AD45048 DSL Driver +/- 6, 12 - 65 55 230 -80 - $2.32
AD8320 Cable CATV Line Driver 5 to 12 n/a 150 n/a n/a -57 53 -
AD8322 Cable CATV Line Driver 5 - 180 - - -58 64 $3.19
AD8324 Cable CATV Line Driver 3.3 - 100 - - -59 157 $1.73
AD8325 Cable CATV Line Driver 5 - 100 - - -57 56 $3.34
AD8326 Cable CATV Line Driver 7 to 12 - 100 - - -57 100 $3.95
AD8327 Cable CATV Line Driver 5 - 160 - - -63 64 $3.80
AD8328 Cable CATV Line Driver 5 - 107 - - -57 135 $1.92
AD8390 DSL Driver +/- 12 5 100 300 400 -82 8 $2.29
AD8391 DSL Driver +/- 6 1 60 600 175 -80 4 $2.13
AD8392 DSL Driver +/- 12 1 65 900 400 -82 4 $3.94
AD8393 DSL Driver 12 5 100 - 500 -73 4 -
ADA4304-2 - Active RF Splitter - - 1600 - - -62 - $0.70
ADA4310-1 - - - 1 190 820 - -69 2.85 $1.45

* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

Pricing, Packaging & Availability

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Price
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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