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AD829:  High Speed, Low Noise Video Op Amp

Product Details


Newer Alternatives:
  • ADA4898-1 and ADA4898-2 with lower noise, 36V maximum supply, unity gain internally compensated with a slew rate of 55 V/μs

The AD829 is a low noise (1.7 nV/√Hz), high speed op amp with custom compensation that provides the user with gains of 1 to 20 while maintaining a bandwidth >50 MHz. Its 0.04° differential phase and 0.02% differential gain performance at 3.58 MHz and 4.43 MHz, driving reverse-terminated 50 Ω or 75 Ω cables, makes it ideally suited for professional video applications. The AD829 achieves its 230 V/μs uncompensated slew rate and 750 MHz gain bandwidth while requiring only 5 mA of current from power supplies.

The external compensation pin of the AD829 gives it exceptional versatility. For example, compensation can be selected to optimize the bandwidth for a given load and power supply voltage. As a gain-of-2 line driver, the −3 dB bandwidth can be increased to 95 MHz at the expense of 1 dB of peaking. Its output can also be clamped at its external compensation pin. The AD829 exhibits excellent dc performance. It offers a minimum open-loop gain of 30 V/mV into loads as low as 500 Ω, a low input voltage noise of 1.7 nV/√Hz, and a low input offset voltage of 1 mV maximum. Common-mode rejection and power supply rejection ratios are both 120 dB.

This op amp is also useful in multichannel, high speed data conversion where its fast (90 ns to 0.1%) settling time is important. In such applications, the AD829 serves as an input buffer for 8-bit to 10-bit ADCs and as an output I/V converter for high speed DACs.

Operating as a traditional voltage feedback amplifier, the AD829 provides many of the advantages that a transimpedance amplifier offer. A bandwidth >50 MHz can be maintained for a range of gains through the replacement of the external compensation capacitor. The AD829 and the transimpedance amplifier are both unity-gain stable and provide similar voltage noise performance (1.7 nV/√Hz); however, the current noise of the AD829 (1.5 pA/√Hz) is less than 10% of the noise of transimpedance amplifiers. The inputs of the AD829 are symmetrical.

FEATURES and BENEFITS

  • High Speed
    120 MHz bandwidth, gain = −1
    230 V/μs slew rate
    90 ns settling time to 0.1%
  • Ideal for video applications
    0.02% differential gain
    0.04° differential phase
  • Low noise
    1.7 nV/√Hz input voltage noise
    1.5 pA/√Hz input current noise
  • Excellent dc precision
    1 mV maximum input offset voltage (over temperature)
    0.3 μV/°C input offset drift
  • Flexible operation
    Specified for ±5 V to ±15 V operation
    ±3 V output swing into a 150 Ω load
    External compensation for gains 1 to 20
    5 mA supply current
  • Available in tape and reel in accordance with EIA-481A standard

AD829 Pin Configuration Diagram

Documentation

Title Content Type File Type
AD829: High Speed, Low Noise Video Op Amp Data Sheet  (Rev I, 10/2011) (pdf, 278 kB) Data Sheets PDF
AD829: Military Data Sheet  (Rev A, 10/2001) (pdf) Data Sheets PDF
AN-581: Biasing and Decoupling Op Amps in Single Supply Applications  (pdf, 166 kB) Application Notes PDF
AN-402: Replacing Output Clamping Op Amps with Input Clamping Amps  (pdf, 55 kB)
So far most clamping amplifiers have relied upon an output clamping architecture and are called output clamp amps (OCAs). A new architecture called an input clamp amp (ICA) offers superior clamping accuracy and lower distortion.
Application Notes PDF
AN-417: Fast Rail-to-Rail Operational Amplifiers Ease Design Constraints in Low Voltage High Speed Systems  (pdf, 228 kB)
Movement towards lower power supply voltages is driven by the demand that systems consume less and less power coupled with the desire to reduce the number of power supply voltages in the system. The following applications are discussed: Single-Ended and Differential Input ADC Input Circuits, Video Line Driver, Active Filter, HDSL Transceiver, and Transformer Drive Circuits.
Application Notes PDF
MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps  (pdf, 62 kB) Tutorials PDF
MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps  (pdf, 66 kB) Tutorials PDF
MT-056: High Speed Voltage Feedback Op Amps  (pdf, 109 kB) Tutorials PDF
MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR  (pdf, 104 kB) Tutorials PDF
MT-052: Op Amp Noise Figure: Don't Be Misled  (pdf, 60 kB) Tutorials PDF
MT-049: Op Amp Total Output Noise Calculations for Single-Pole System  (pdf, 40 kB) Tutorials PDF
MT-048: Op Amp Noise Relationships: 1/f Noise, RMS Noise, and Equivalent Noise Bandwidth  (pdf, 81 kB) Tutorials PDF
MT-047: Op Amp Noise  (pdf, 72 kB) Tutorials PDF
MT-033: Voltage Feedback Op Amp Gain and Bandwidth  (pdf, 251 kB) Tutorials PDF
MT-032: Ideal Voltage Feedback (VFB) Op Amp  (pdf, 65 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-101: Evaluation Board User Guide  (pdf, 189 kB) User Guides PDF
ADI Warns Against Misuse of COTS Integrated Circuits  (pdf, 13 kB)
(Revised 1/03)
Invites Customer Participation in Creative Mil/Aero System Solutions
Recommended Reading PDF
Space Qualified Parts List  (pdf, 93 kB)
This document lists 67 (240+) space level products that are available from Analog Devices. Many of the products listed are state-of-the-art data conversion and signal processing products that were previously only available as commercial or military Class B products. Through our Space Products Group and MIL-PRF-38535 certified Level V (Class S) facility, we are pleased to offer these products to the space marketplace.
Aerospace Information PDF
High Speed Amplifiers Selection Table  (pdf, 77 kB) Product Selection Guide PDF
When high performance and low power make the design, ADI converters make the difference. Overview HTML
What do I do with the "null pins" on the amplifier if I don't plan to use them? FAQs/RAQs HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
dBm/dBu/dBv Calculator
This calculator converts between standard units of power measurement and signal strength.
Utilities and Conversions HTML
Power Dissipation vs Die Temp
This tool estimates die temperature and power dissipation based on the supply voltages, ambient temperature, load characteristics, and package thermal data.
Utilities and Conversions HTML
ADIsimOpAmp™
This tool will help with the selection, evaluation and troubleshooting of voltage feedback Op-Amps. It uses typical data to model the behavior of a selected amplifier. It allows a user to select an amplifier, configure a circuit, apply a signal and evaluate the performance. It is useful for checking an amplifier's spec's such as Bandwidth, Slew Rate, Input/Output Range, Gain Error, Load Current, Stability Issues and DC Errors in a given circuit.
ADIsim Design/Simulation Tools HTML
OpAmp Stability
An applet for demonstrating stability effects in opamp buffers.
Design Calculators HTML
AD829 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

AD829 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
5962-9312901M2A Status: Production 20 ld LCC 20 Mil Tube, 54 $109.35 $98.86 N  Material Info PCN Purchase
5962-9312901MPA Status: Production 8 ld CerDIP 8 Mil Tube, 48 $26.17 $23.65 N  Material Info PCN Purchase
AD829AQ Status: Production 8 ld CerDIP 8 Ind Tube, 48 $5.99 $5.42 N  Material Info PCN Purchase
AD829AR Status: Production 8 ld SOIC 8 Ind Tube, 98 $3.38 $3.06 N  Material Info PCN Purchase
AD829AR-REEL Status: Last Time Buy 8 ld SOIC 8 Ind Reel, 2500 - $3.06 N  Material Info PCN/PDN Purchase
AD829AR-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 $3.38 $3.06 N  Material Info PCN Purchase
AD829ARMZ Status: Obsolete 8 ld MSOP 8 Tube, 50 - - Y  Material Info Notify Me Contact ADI
AD829ARMZ-R7 Status: Obsolete 8 ld MSOP 8 Reel, 1000 - - Y  Material Info Notify Me Contact ADI
AD829ARMZ-RL Status: Obsolete 8 ld MSOP 8 Reel, 3000 - - Y  Material Info Notify Me Contact ADI
AD829ARZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $3.08 $2.78 Y  Material Info PCN Purchase
AD829ARZ-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $2.78 Y  Material Info PCN Purchase
AD829ARZ-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $2.78 Y  Material Info PCN Purchase
AD829JCHIPS Status: Production CHIPS OR DIE 0 Comm. Tray, 225 - - Y  Material Info PCN Contact ADI
AD829JN Status: Production 8 ld PDIP 8 Comm. Tube, 50 $3.97 $3.59 N  Material Info PCN Purchase
AD829JNZ Status: Production 8 ld PDIP 8 Comm. Tube, 50 $3.62 $3.27 Y  Material Info PCN Purchase
AD829JR Status: Last Time Buy 8 ld SOIC 8 Comm. Tube, 98 $3.97 $3.59 N  Material Info PCN/PDN Purchase
AD829JR-REEL Status: Last Time Buy 8 ld SOIC 8 Comm. Reel, 2500 - $3.59 N  Material Info PCN/PDN Purchase
AD829JR-REEL7 Status: Production 8 ld SOIC 8 Comm. Reel, 750 - $3.59 N  Material Info PCN Purchase
AD829JRZ Status: Production 8 ld SOIC 8 Comm. Tube, 98 $3.62 $3.27 Y  Material Info PCN Purchase
AD829JRZ-REEL Status: Production 8 ld SOIC 8 Comm. Reel, 2500 - $3.27 Y  Material Info PCN Purchase
AD829JRZ-REEL7 Status: Production 8 ld SOIC 8 Comm. Reel, 750 - $3.27 Y  Material Info PCN Purchase
AD829SCHIPS Status: Production CHIPS OR DIE 0 Mil Tray, 225 - - Y  Material Info PCN Contact ADI
AD829SE/883B Status: Production 20 ld LCC 20 Mil Tube, 54 $109.35 $98.86 N  Material Info PCN Purchase
AD829SQ Status: Production 8 ld CerDIP 8 Mil Tube, 48 $18.00 $16.26 N  Material Info PCN Purchase
AD829SQ/883B Status: Production 8 ld CerDIP 8 Mil Tube, 48 $26.17 $23.65 N  Material Info PCN 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.

AD829 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD829AR-EBZ Status: Production 8-lead SOIC Evaluation Board $18.25 Yes -
AD829ARZ Status: Production SOIC 150 MIL $4.82 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

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