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  2. Amplifiers
  3. Operational Amplifiers (Op Amps)
  4. Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C)
  5. AD829


Alternative Parts

Overview

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

Product Details

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.

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Documentation & Resources

  • View All (18)
  • Data Sheets (2)
  • Application Notes (2)
  • User Guides (1)
  • Frequently Asked Questions (1)
  • Tutorials (10)
  • Product Selection Guide (1)
  • Webcasts (1)
  • Frequently Asked Questions
    Tutorials

    Tools & Simulations

    Design Tools

    Analog Filter Wizard

    Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.

    Analog Photodiode Wizard

    Use Photodiode Wizard to design a transimpedance amplifier circuit to interface with a photodiode. Select a photodiode from the library included in the tool, or enter custom photodiode specifications. Quickly observe tradeoffs between Bandwidth, Peaking (Q), and ENOB/SNR. Modify circuit parameters, and immediately see results in plots for pulse response, frequency response, and noise gain.

    VRMS/dBm/dBu/dBV calculators

    A utility to convert between standard units of power measurement and signal strength.

    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.

    Design Resources

    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    5962-9312901M2A Material Declaration Reliability Data 20-Lead LCC
    5962-9312901MPA Material Declaration Reliability Data 8-Lead CerDIP
    AD829AQ Material Declaration Reliability Data 8-Lead CerDIP
    AD829ARZ Material Declaration Reliability Data 8-Lead SOIC
    AD829ARZ-REEL Material Declaration Reliability Data 8-Lead SOIC
    AD829ARZ-REEL7 Material Declaration Reliability Data 8-Lead SOIC
    AD829JCHIPS Material Declaration Reliability Data none available
    AD829JNZ Material Declaration Reliability Data 8-Lead PDIP
    AD829JRZ Material Declaration Reliability Data 8-Lead SOIC
    AD829JRZ-REEL Material Declaration Reliability Data 8-Lead SOIC
    AD829JRZ-REEL7 Material Declaration Reliability Data 8-Lead SOIC
    AD829SCHIPS Material Declaration Reliability Data none available
    AD829SE/883B Material Declaration Reliability Data 20-Lead LCC
    AD829SQ Material Declaration Reliability Data 8-Lead CerDIP
    AD829SQ/883B Material Declaration Reliability Data 8-Lead CerDIP
    Wafer Fabrication Data

    PCN-PDN Information

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    Sample & Buy


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    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.