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.
Design Tools
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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
| 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.
AD8390 Model Options
Help
- Pre-Release: The model has not been released to general production, but samples may be available.
- Production: The model is currently being produced, and generally available for purchase and sampling.
- Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
- Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
For detailed drawings and chemical composition please consult our Package Site
- Commercial: 0 to +70 degrees Celsius
- Military : -55 to +125 degrees Celsius
- Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
- Automotive: -40 to +125 degrees Celsius
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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