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AD8398:  VDSL, Dual Line Driver with Shutdown

Product Details

The AD8398 is comprised of two high-speed current feedback operational amplifiers. The high output current, high bandwidth and fast slew rate make it particularly well suited as the line driver in VDSL and VDSL2 applications. The AD8398 is available in a thermally enhanced 4 mm × 4 mm, 16-lead LFCSP.

The AD8398 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, and complete power down. In the power down mode, the quiescent current drops to 0.65 mA/amplifier

The AD8398 operates in the extended industrial temperature range of -40°C to +85°C.


  • Dual current feedback amplifier with 250 mA drive
  • Wide output swing
    18.8 V p-p differential, (50 Ω RLOAD from 12 V supply
    20.6 V p-p differential, (100 Ω RLOAD from 12 V supply
  • High output current
    Linear output current of 250 mA peak
  • Low distortion
    -100 dBc typical at 200 kHz
    -76 dBc typical at 4 MHz
    -66 dBc typical at 8 MHz
    -56 dBc typical at 16 MHz
  • Low quiescent current
    7.5 mA per amplifier
  • High speed
    250 MHz gain bandwidth (AV DIFF = 2, -3 dB)
    900 V/µs slew rate (RLOAD = 50 Ω)


For the complete data sheet please contact the Broadband Products Group. Please be sure to include your name, address, company name and application.


Title Content Type File Type
AD8398: VDSL, Dual Line Driver with Shutdown Data Sheet (Rev Sp0, 08/2007) (pdf, 89 kB) Data Sheets PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

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AD8398 Model Options
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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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