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  3. Operational Amplifiers (Op Amps)
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  5. AD8028

Alternative Parts


Features and Benefits

  • Download AD8028-KGD Data Sheet. Available as Known Good Die and fully guaranteed to data sheet specifications.
  • High speed
  • 190 MHz, −3 dB bandwidth (G = +1)
  • 100 V/µs slew rate
  • Low distortion
    • 120 dBc at 1 MHz SFDR
    • 80 dBc at 5 MHz SFDR
  • Selectable input crossover threshold
  • Low noise
    • 4.3 nV/√Hz
    • 1.6 pA/√Hz
  • Low offset voltage: 900 µV maximum
  • Low power: 6.5 mA per amplifier supply current
  • Power-down mode
  • No phase reversal: VIN > |VS| + 200 mV
  • Wide supply range: 2.7 V to 12 V
  • Small packaging: 8-lead SOIC, 6-lead SOT-23, 10-lead MSOP
  • Qualified for automotive applications (AD8028WARMZ-R7 only)

Product Details

The AD8027/AD8028 are high speed amplifiers with rail-to-rail input and output that operate on low supply voltages and are optimized for high performance and a wide dynamic signal range. The AD8027/AD8028 have low noise (4.3 nV/√Hz, 1.6 pA/√Hz) and low distortion (120 dBc at 1 MHz). In applications that use a fraction of or use the entire input dynamic range and require low distortion, the AD8027/AD8028 are ideal choices.

Many rail-to-rail input amplifiers have an input stage that switches from one differential pair to another as the input signal crosses a threshold voltage, which causes distortion. The AD8027/AD8028 have a unique feature that allows the user to select the input crossover threshold voltage through the DISABLE/SELECT pin (DISABLE/SELECT x in the 10-lead MSOP, hereafter referred to as DISABLE/SELECT throughout this data sheet). This feature controls the voltage at which the complementary transistor input pairs switch. The AD8027/AD8028 also have intrinsically low crossover distortion.

With their wide supply voltage range (2.7 V to 12 V) and wide bandwidth (190 MHz), the AD8027/AD8028 amplifiers are designed to work in a variety of applications where speed and performance are needed on low supply voltages. The high performance of the AD8027/AD8028 is achieved with a quiescent current of only 6.5 mA (typical) per amplifier. The AD8027/AD8028 have a shutdown mode that is controlled via the DISABLE/SELECT pin.

The AD8027/AD8028 are available in 8-lead SOIC, 6-lead SOT-23, and 10-lead MSOP packages. The AD8028WARMZ-R7 is an automotive grade version, qualified for automotive applications. See the Automotive Products section for more details. The AD8027/AD8028 family is designed to work over the extended temperature range of −40°C to +125°C.


  • Filters
  • ADC drivers
  • Level shifting
  • Buffering
  • Professional video
  • Low voltage instrumentation

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 (21)
  • Data Sheets (2)
  • Application Notes (2)
  • User Guides (1)
  • Tutorials (12)
  • Product Selection Guide (2)
  • Webcasts (1)
  • Rarely Asked Questions (1)
  • Tutorials

    Tools & Simulations

    SPICE Models

    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
    AD8028-KGD-CHIP Material Declaration Reliability Data CHIPS OR DIE
    AD8028ARMZ Material Declaration Reliability Data 10-Lead MSOP
    AD8028ARMZ-REEL7 Material Declaration Reliability Data 10-Lead MSOP
    AD8028ARZ Material Declaration Reliability Data 8-Lead SOIC
    AD8028ARZ-REEL Material Declaration Reliability Data 8-Lead SOIC
    AD8028ARZ-REEL7 Material Declaration Reliability Data 8-Lead SOIC
    AD8028WARMZ-R7 Material Declaration Reliability Data 10-Lead MSOP
    Wafer Fabrication Data

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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.