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AD8131:  Low-Cost, High Speed Differential Driver

Product Details


The AD8131 is a differential or single-ended input to differential output driver requiring no external components for a fixed gain of 2. The AD8131 is a major advancement over op amps for driving signals over long lines or for driving differential input ADCs. The AD8131 has a unique internal feedback feature that provides output gain and phase matching that are balanced to -60dB at 10MHz, reducing radiated EMI and suppressing harmonics. Manufactured on ADI's next generation of XFCB bipolar process, the AD8131 has a -3 dB bandwidth of 400 MHz and delivers a differential signal with very low harmonic distortion.

The AD8131 is a differential driver for the transmission of high-speed signals over low-cost twisted pair or coax cables. The AD8131 can be used for either analog or digital video signals or for other high-speed data transmission. The AD8131 driver is capable of driving either Cat3 or Cat5 twisted pair or coax with minimal line attenuation. The AD8131 has considerable cost and performance improvements over discrete line driver solutions.

The AD8131 is available in both SOIC and MSOP packages for operation over -40°C to +125°C.

FEATURES and BENEFITS

  • High Speed
    400 MHz –3 dB Full Power Bandwidth
    2000 V/µs Slew Rate
  • Fixed Gain of 2 with No External Components
  • Internal Common-Mode Feedback to Improve Gain and Phase Balance
    –60 dB @10 MHz
  • Separate Input to Set the
    Common-Mode Output Voltage
  • Low Distortion
    68 dB SFDR @ 5 MHz 200 Ω Load
  • Power Supply Range +2.7 V to ±5 V

Functional Block Diagram for AD8131

Documentation

Title Content Type File Type
AD8131: Low-Cost, High-Speed Differential Driver Data Sheet (Rev B, 06/2005) (pdf, 372 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
AN-357: Operational Integrators  (pdf, 272 kB) Application Notes PDF
AN-356: User's Guide to Applying and Measuring Operational Amplifier Specifications  (pdf, 538 kB) Application Notes PDF
AN-584: Using the AD813X Differential Amplifier  (pdf, 174 kB)
The AD813x differs from conventional op amps by the external presence of an additional input and output. The additional input, VOGM, controls the output common mode voltage.
Application Notes PDF
UG-474: Evaluation Board for Differential Amplifiers Offered in 8-Lead SOIC Packages  (PDF, 263 kB) User Guides PDF
UG-130: Differential Amplifier Evaluation Board for 8-lead SOIC and MSOP Packages  (pdf, 493 kB) User Guides PDF
Amplifiers for Video Distribution  (pdf, 115 kB) Product Selection Guide PDF
High Speed Amplifiers Selection Table  (pdf, 77 kB) Product Selection Guide PDF
Video Amplifier Products (April 2007)  (pdf, 4117 kB) Overview PDF
Security and Surveillance Applications Overview HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
AD8131 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

AD8131 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8131AR Status: Production 8 ld SOIC 8 Ind Tube, 98 $2.48 $2.10 N  Material Info Notify Me Purchase
AD8131ARM Status: Production 8 ld MSOP 8 Ind Tube, 50 $2.48 $2.10 N  Material Info PCN Purchase
AD8131ARMZ Status: Production 8 ld MSOP 8 Ind Tube, 50 $2.15 $1.82 Y  Material Info PCN Purchase Sample
AD8131ARMZ-REEL Status: Production 8 ld MSOP 8 Ind Reel, 3000 - $1.82 Y  Material Info PCN Purchase
AD8131ARMZ-REEL7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $1.82 Y  Material Info PCN Purchase
AD8131ARZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $2.15 $1.82 Y  Material Info Notify Me Purchase Sample
AD8131ARZ-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $1.82 Y  Material Info Notify Me Purchase
AD8131ARZ-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $1.82 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.

AD8131 Evaluation Boards
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8131AR-EBZ Status: Production 8-Lead SOIC Bare Evaluation Board $18.25 Yes -
AD8131ARZ Status: Production 8-Lead SOIC $3.01 Yes -
AD8131ARM-EBZ Status: Production 8-Lead MSOP Bare Evaluation Board $18.25 Yes -
AD8131ARMZ Status: Production 8-Lead MSOP $3.01 Yes -
AD8330 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8330-EVALZ Status: Production Evaluation Board $100.61 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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