AD8131 Low-Cost, High Speed Differential Driver

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.

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
Amplifiers
Audio & Video Products
AD8131 SPICE Macro-Model
Data Sheets
Documentnote
AD8131: Low-Cost, High-Speed Differential Driver Data Sheet (Rev. B)PDF 372 kB
Application Notes
Documentnote
AN-357: Operational IntegratorsPDF 272 kB
AN-356: User's Guide to Applying and Measuring Operational Amplifier SpecificationsPDF 538 kB
AN-692: Universal Precision Op Amp Evaluation Board (Rev. A)PDF 621 kB
AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0)PDF 5.3 M
AN-584: Using the AD813X Differential Amplifier (Rev. 0)PDF 174 kB
AN-589: Ways to Optimize the Performance of a Difference Amplifier (Rev. B)PDF 115 kB
User Guides
Documentnote
UG-888: Evaluation Board for Differential Amplifiers Offered in 8-Lead MSOP Packages (Rev. 0)PDF 382.52 K
UG-474: Evaluation Board for Differential Amplifiers Offered in 8-Lead SOIC PackagesPDF 263 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD8131AR Production8 ld SOICOTH 98-40 to 125C2.482.1N
AD8131ARM Production8 ld MSOPOTH 50-40 to 125C2.482.1N
AD8131ARMZ Production8 ld MSOPOTH 50-40 to 125C2.151.82Y
AD8131ARMZ-REEL Production8 ld MSOPREEL 3000-40 to 125C01.82Y
AD8131ARMZ-REEL7 Production8 ld MSOPREEL 1000-40 to 125C01.82Y
AD8131ARZ Production8 ld SOICOTH 98-40 to 125C2.151.82Y
AD8131ARZ-REEL Production8 ld SOICREEL 2500-40 to 125C01.82Y
AD8131ARZ-REEL7 Production8 ld SOICREEL 1000-40 to 125C01.82Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
EVAL-FDA-1CPZ-16Evaluation Bare Board for 16 Lead LFCSP18.25Y
EVAL-FDA-1RMZ-8Evaluation Bare Board for 8 Lead MSOP18.25Y
EVAL-FDA-1RZ-8Evaluation Bare Board for 8 Lead SOIC18.25Y
FDA-FILTER-CPZEvaluation Board Filter for LFCSP18.25Y
Reference Materials
AD8131: Low-Cost, High-Speed Differential Driver Data Sheet (Rev. B) ad8131
AD8131 SPICE Macro-Model Maximum Values Rev A, 10/2000 ad8131
AD8131 SPICE Macro-Model Typical Values Rev A, 10/2000 ad8131
AN-357: Operational Integrators ad8350
AN-356: User's Guide to Applying and Measuring Operational Amplifier Specifications ad8350
AN-356: 用户指南：运算放大器规格参数的应用和测量 (Rev. 0) ad8350
AN-589: 差动放大器性能优化方法 (Rev. 0) ad8350
AN-584: AD813x的运用 (Rev. 0) ad8138
AN-692: Universal Precision Op Amp Evaluation Board (Rev. A) ad8072
AN-692: 通用精密运算放大器评估板 (Rev. 0) ad8072
AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0) ad8350
AN-584: Using the AD813X Differential Amplifier (Rev. 0) ad8138
AN-589: Ways to Optimize the Performance of a Difference Amplifier (Rev. B) ad8350
UG-888: Evaluation Board for Differential Amplifiers Offered in 8-Lead MSOP Packages (Rev. 0) ad8138
UG-474: Evaluation Board for Differential Amplifiers Offered in 8-Lead SOIC Packages ad8138
Amplifiers for Video Distribution ad8132
High Speed Amplifiers Selection Table ad8138
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