1. Products
  2. Amplifiers
  3. Specialty Amplifiers
  4. xDSL Line Drivers
  5. AD8398


Features and Benefits

  • 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)

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.

Product Categories

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
AD8398ACPZ-R7 Material Declaration Reliability Data 16-Lead LFCSP (4mm x 4mm w/ EP)
Wafer Fabrication Data

PCN-PDN Information

Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.

Sample & Buy

Ordering FAQs

See our Ordering FAQs for answers to questions about online orders, payment options and more.


Buy Now Pricing

(**) Displayed Buy Now Price and Price Range is based on small quantity orders.


List Pricing

(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

Please see the latest communication from our CCO regarding lead times.



A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Price Table Help