Features and Benefits
- Low cost
- Easy to use voltage feedback architecture
- High speed
300 MHz, -3 dB bandwidth (G = +1)
1400 V/µs slew rate
20 ns settling to 0.1%
Low distortion: -72 dBc @ 10 MHz
Low noise: 6 nV/√Hz
Low dc rrrors: 5mV max VOS, 1.2 µA max IB
- Small packaging
- High output drive current: over 60 mA
- Excellent video specifications
(RL = 150 Ω, G = +2)
Gain flatness 0.1 dB to 40 MHz
0.01% differential gain error
0.02° differential phase error
- Drives 4 video loads (37.5 V) with 0.02% differential gain and 0.1° differential phase
- Low power, ±5 V supplies 5 mA typ/amplifier power supply current
The AD8056 (dual) voltage feedback amplifier offers bandwidth and slew rate typically found in current feedback amplifiers. Additionally, this amplifier is easy to use and available at a very low cost.
Despite its low cost, the AD8056 provides excellent overall performance. For video applications, its differential gain and phase error is 0.01% and 0.02° into a 150 Ω load, and 0.02% and 0.1° while driving four video loads (37.50 Ω).
Its 0.1 dB flatness out to 40 MHz, wide bandwidth out to 300 MHz, along with 1400 V/µs slew rate and 20 ns settling time, make them useful for a variety of high-speed applications.
The AD8056 requires only 5 mA typ/amplifier of supply current and operates on a dual ±5 V or single +12 V power supply, while capable of delivering over 60 mA of load current. The AD8056 is available in a small 8-lead PDIP, 8-lead SOIC, and 8-lead MSOP packages. These features make the AD8056 ideal for portable and battery powered applications where size and power are critical. This amplifier in the R-8, N-8 and RM-8 packages are available in the extended temperature range of -40°C to +125°C.
AD8055 (Single) PDIP-8, SOIC-8 and SOT-23-5
AD8056 (Dual) PDIP-8, SOIC-8 and MSOP-8
Product Lifecycle 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)
The Universal Dual High Speed Amplifier Evaluation Boards are bare boards that enables users to quickly prototype a variety of amplifier circuits, which minimizes risk and reduces time to market. These boards are all RoHs Compliant. See ordering guide below on what board to order by lead count and package.
Documentation & Resources
MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR2/14/2015
MT-052: Op Amp Noise Figure: Don't Be Misled2/14/2015
MT-050: Op Amp Total Output Noise Calculations for Second-Order System2/14/2015
MT-049: Op Amp Total Output Noise Calculations for Single-Pole System2/14/2015
MT-048: Op Amp Noise Relationships: 1/f Noise, RMS Noise, and Equivalent Noise Bandwidth2/14/2015
MT-047: Op Amp Noise2/14/2015
MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps2/14/2015
MT-059: Compensating for the Effects of Input Capacitance on VFB and CFB Op Amps Used in Current-to-Voltage Converters2/14/2015
MT-033: Voltage Feedback Op Amp Gain and Bandwidth2/14/2015
MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps2/14/2015
MT-056: High Speed Voltage Feedback Op Amps2/3/2009
MT-032: Ideal Voltage Feedback (VFB) Op Amp12/11/2008
High Speed Amplifiers Selection Table2/27/2008
Tools & Simulations
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.
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.
A utility to convert between standard units of power measurement and signal strength.
This tool estimates die temperature and power dissipation based on the supply voltages, ambient temperature, load characteristics, and package thermal data.
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|
|AD8056ANZ||Material Declaration||Reliability Data||8-Lead PDIP|
|AD8056ARMZ||Material Declaration||Reliability Data||8-Lead MSOP|
|AD8056ARMZ-REEL||Material Declaration||Reliability Data||8-Lead MSOP|
|AD8056ARMZ-REEL7||Material Declaration||Reliability Data||8-Lead MSOP|
|AD8056ARZ||Material Declaration||Reliability Data||8-Lead SOIC|
|AD8056ARZ-REEL||Material Declaration||Reliability Data||8-Lead SOIC|
|AD8056ARZ-REEL7||Material Declaration||Reliability Data||8-Lead SOIC|
|Wafer Fabrication Data|
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Sample & Buy
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Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
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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.