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AD8137:  Low Cost, Low Power Differential ADC Driver

Product Details


Newer Alternatives:
  • ADA4940-1 or ADA4940-2 for ultralow power, low distortion and a fully differential ADC Driver

The AD8137 is a low cost differential driver with a rail-to-rail output that is ideal for driving ADCs in systems that are sensitive to power and cost. The AD8137 is easy to apply, and its internal common-mode feedback architecture allows its output common-mode voltage to be controlled by the voltage applied to one pin. The internal feedback loop also provides inherently balanced outputs as well as suppression of even-order harmonic distortion products. Fully differential and single-ended-to-differential gain configurations are easily realized by the AD8137. External feedback networks consisting of four resistors determine the closed-loop gain of the amplifier. The power-down feature is beneficial in critical low power applications.

The AD8137 is manufactured on Analog Devices, Inc., proprietary second-generation XFCB process, enabling it to achieve high levels of performance with very low power consumption.

The AD8137 is available in the small 8-lead SOIC package and 3 mm × 3 mm LFCSP package. It is rated to operate over the extended industrial temperature range of −40°C to +125°C.

APPLICATIONS
  • ADC drivers
  • Portable instrumentation
  • Battery-powered applications
  • Single-ended-to-differential converters
  • Differential active filters
  • Video amplifiers
  • Level shifters

FEATURES and BENEFITS

  • Chinese data sheet available
  • Fully differential
  • Extremely low power with power-down feature
    2.6 mA quiescent supply current @ 5 V
    450 µA in power-down mode @ 5 V
  • High Speed
  • 12-bit SFDR performance @ 500 kHz
  • Fast settling time: 100 ns to 0.02%
  • Low input offset voltage: ±2.6 mV max
  • Low input offset current:
    0.45 µA max
  • Differential input and output
  • Differential-to-differential or single-ended-to-differential operation
  • Rail-to-rail output
  • Adjustable output common-mode
    voltage
  • See data sheet for additional features

Functional Block Diagram for AD8137

Next Generation Devices

Analog Devices introduces the next generation of Differential Amplifiers, these new amplifiers offer higher performance and lower power consumption than previous devices. Also new in this category, is each of these devices are offered as dual amplifiers, which simplifies designs and reduces board area.

Documentation

Title Content Type File Type
AD8137:  Low Cost, Low Power, Differential ADC Driver Data Sheet  (Rev E, 07/2012) (pdf, 835 kB) Data Sheets PDF
AN-1026: High Speed Differential ADC Driver Design Considerations  (pdf, 355 kB) Application Notes PDF
AN-0990: Terminating a Differential Amplifier in Single-Ended Input Applications  (pdf, 181 kB) Application Notes PDF
AN-0992: Active Filter Evaluation Board for Differential Amplifiers  (pdf, 85 kB) Application Notes PDF
AN-649: Using the Analog Devices Active Filter Design Tool  (pdf, 5301 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
MT-218: Multiple Feedback Band-Pass Design Example  (pdf, 0) Tutorials PDF
MT-076: Differential Driver Analysis  (pdf, 95 kB) Tutorials PDF
MT-075: Differential Drivers for High Speed ADCs Overview  (pdf, 183 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-474: Evaluation Board for Differential Amplifiers Offered in 8-Lead SOIC Packages  (PDF, 263 kB) User Guides PDF
UG-190: Differential Amplifier Evaluation Board for Single 8-lead LFCSP Packages  (pdf, 278 kB) User Guides PDF
UG-130: Differential Amplifier Evaluation Board for 8-lead SOIC and MSOP Packages  (pdf, 493 kB) User Guides PDF
"Rules of the Road" for High-Speed Differential ADC Drivers
(Analog Dialogue, Vol. 43, No. 5, 2009)
Analog Dialogue HTML
AD8139/AD8137: Differential Amplifiers For ADC Driving  (htm)
(analogZONE, June 7,2004)
Product Reviews HTM
High Speed Amplifiers Selection Table  (pdf, 77 kB) Product Selection Guide PDF
Industrial 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
ADI DiffAmpCalc™
ADI's new ADI DiffAmpCalc™ is a free, downloadable calculator for designing differential amplifier circuits. The tool is easy to use and features an interactive user interface to quickly get you up and running.
ADIsim Design/Simulation Tools HTML
AD8137 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

AD8137 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8137WYCPZ-R7 Status: Production LFCSP:LEADFRM CHIP SCALE 8 Auto Reel, 1500 - $1.15 Y  Material Info PCN Purchase Sample
AD8137YCPZ-R2 Status: Production 8 ld LFCSP (3x3mm) 8 Ind Reel, 250 $1.86 $1.86 Y  Material Info PCN Purchase
AD8137YCPZ-REEL Status: Last Time Buy 8 ld LFCSP (3x3mm) 8 Ind Reel, 5000 - $1.10 Y  Material Info PCN/PDN Purchase
AD8137YCPZ-REEL7 Status: Production 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - $1.10 Y  Material Info PCN Purchase Sample
AD8137YR Status: Last Time Buy 8 ld SOIC 8 Ind Tube, 98 $1.50 $1.27 N  Material Info PDN Purchase
AD8137YR-REEL7 Status: Last Time Buy 8 ld SOIC 8 Ind Reel, 1000 - $1.27 N  Material Info PDN Purchase
AD8137YRZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $1.30 $1.10 Y  Material Info Notify Me Purchase Sample
AD8137YRZ-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $1.10 Y  Material Info Notify Me Purchase
AD8137YRZ-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $1.10 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.

AD8137 Evaluation Boards
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8137YCP-EBZ Status: Production 8-Lead LFCSP Bare Evaluation Board $18.25 Yes -
AD8137YR-EBZ Status: Production 8-Lead SOIC Bare Evaluation Board $18.25 Yes -
AD8137YRZ Status: Production 8-Lead SOIC $1.82 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.

Check Inventory & Purchase

View Sales and Distribution Offices

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