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AD8018:  5 V, Rail-to-Rail, High Output Current, xDSL Line Driver Amplifiers

Product Details


The AD8018 is a dual, high speed, low cost amplifier capable of driving low distortion signals to within 0.5 V of the supply rail. It is intended for use in single supply xDSL systems where low distortion and low cost is essential, and maximum reach on the line must be attained with the minimum of supply voltages. Each amplifier drives minimum 350 mA of output current and while maintaining -95 dBc of SFDR at 100 kHz, outstanding performance for any xDSL CPE application. The AD8018 is available with flexible standby and shutdown modes. Two bit control (1.5 V threshold referenced to DGND) will put the AD8018 into a full power standby (outputs low impedance) and shutdown (outputs high impedance).

Fabricated in ADI's high speed XFCB process, the high bandwidth and fast slew rate of the AD8018 keep distortion to a minimum, while dissipating a minimum of power. The quiescent current of the AD8018 is low 9 mA/amplifier max. Low distortion, high output voltage drive, and high output current drive in small packages make the AD8018 ideal for use in low cost USB, PCMCIA and PCI Customer Premise Equipment for ADSL, SDSL, VDSL and proprietary xDSL systems.

An evaluation board is available for this product and may be ordered using the following product number AD8018ARU-EVAL.

FEATURES and BENEFITS

  • Ideal xDSL Line Drive Amplifier for USB, PCMCIA, or PCI-Based Customer Premise Equipment (CPE)
  • Rail-to-Rail Output Voltage and High Output Current Drive
  • 400 mA Output Current into Differential Load of 10 Ω @ 8 V p-p
  • Low Single-Tone Distortion
    -86dBc Worst Harmonic, 6 V p-p into Differential 10 Ω @ 100kHz
  • Low Noise
    4.5 nV/vHz Voltage Noise Density, 100kHz
  • Out-of-Band SFDR = -82dBc, 144kHz to
    500kHz, RLOAD = 12.5 Ω PLINE = 13dBm
  • Low-Power Operation
    3.3 V to 8 V Power Supply Range
    Two Logic Bits for Standby and Shut-down
  • High Speed
    130MHz Bandwidth (-3dB)
    300 V/µs Slew Rate

Pin Configuration Diagram for AD8018

AD8018 Diagram
Pin Configuration Diagram for AD8018

Documentation

Title Content Type File Type
AD8018: 5 V, Rail-to-Rail, High-Output Current, xDSL Line Drive Amplifiers Data Sheet (Rev A, 11/2000) (pdf, 339 kB) Data Sheets PDF
AN-692: Universal Precision Op Amp Evaluation Board  (pdf, 621 kB) Application Notes PDF
AN-649: Using the Analog Devices Active Filter Design Tool  (pdf, 5301 kB) Application Notes PDF
MT-057: High Speed Current Feedback Op Amps  (pdf, 78 kB) Tutorials PDF
MT-051: Current Feedback Op Amp Noise Considerations  (pdf, 36 kB) Tutorials PDF
MT-034: Current Feedback (CFB) Op Amps  (pdf, 130 kB) Tutorials PDF
MT-059: Compensating for the Effects of Input Capacitance on VFB and CFB Op Amps Used in Current-to-Voltage Converters  (pdf, 69 kB) Tutorials PDF
A Stress-Free Method for Choosing High-Speed Op Amps
A decision-tree approach to making the critical decision about high-speed op amp selection, including a look at some helpful tools.
Webcasts WEBCAST
UG-128: Universal Evaluation Board for Dual High Speed Op Amps in SOIC Packages  (pdf, 208 kB) User Guides PDF
Two-Stage Current-Feedback Amplifier
(Analog Dialogue, Vol. 29, No. 2, 1995)
Analog Dialogue HTML
Current Feedback Amplifiers Analog Dialogue HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
AD8018 SPICE Macro-Model SPICE Models HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

AD8018 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8018AR-REEL7 Status: Last Time Buy 8 ld SOIC 8 Ind Reel, 1000 - $3.40 N  Material Info PDN Purchase
AD8018ARUZ Status: Production 14 ld TSSOP 14 Ind Tube, 96 $3.29 $3.10 Y  Material Info PCN Purchase
AD8018ARUZ-REEL Status: Last Time Buy 14 ld TSSOP 14 Ind Reel, 2500 - $3.10 Y  Material Info PCN/PDN Purchase
AD8018ARUZ-REEL7 Status: Production 14 ld TSSOP 14 Ind Reel, 1000 - $3.10 Y  Material Info PCN Purchase
AD8018ARZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $3.29 $3.10 Y  Material Info Notify Me Purchase
AD8018ARZ-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $3.10 Y  Material Info Notify Me Purchase
AD8018ARZ-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $3.10 Y  Material Info Notify Me Purchase
Price Table Help

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.

AD8018 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8018AR-EBZ Status: Production 8-Lead SOIC Bare Evaluation Board $18.25 Yes -
AD8018ARZ Status: Production 8-Lead SOIC $3.62 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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