AD812: Dual, Current Feedback Low Power Op Amp Data Sheet (Rev. B)10/29/1993372 kB
Features and Benefits
- Two Video Amplifiers in One 8-Lead
- Optimized for Driving Cables in
- High Speed
145 MHz Unity Gain Bandwidth (3 dB)
1600 V/µs Slew Rate
- Low Power
Operates on Single +3 V Supply
5.5 mA/Amplifier Max Power Supply Current
- Excellent Video Specifications
(RL = 150 Ω):Gain Flatness 0.1 dB to 40 MHz
0.02% Differential Gain Error
0.02° Differential Phase Error
- Easy to Use
50 mA Output Current
Output Swing to 1 V of Rails
(150 Ω Load)
The AD812 is a low power, single supply, dual video amplifier. Each of the amplifiers have 50 mA of output current and are optimized for driving one back terminated video load (150 Ω) each. Each amplifier is a current feedback amplifier and features gain flatness of 0.1 dB to 40 MHz while offering differential gain and phase error of 0.02% and 0.02°. This makes the AD812 ideal for professional video electronics such as cameras and video switchers.
The AD812 offers low power of 4.0 mA per amplifier max (VS = +5 V) and can run on a single +3 V power supply. The outputs of each amplifier swing to within one volt of either supply rail to easily accommodate video signals of 1 Vp-p. Also, at gains of +2 the AD812 can swing 3 V p-p on a single +5 V power supply. All this is offered in a small 8-pin plastic DIP or 8-pin SOIC package. These features make this dual amplifier ideal for portable and battery powered applications where size and power is critical.
The outstanding bandwidth of 145 MHz along with 1600 V/µs of slew rate make the AD812 useful in many general purpose high speed applications where a single +5 V or dual power supplies up to ±15 V are available. The AD812 is available in the industrial temperature range of -40°C to +85°C.
Lead free package option available (AD812ARZ, AD812ARZ-REEL, AD812ARZ-REEL7).
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.
UG-776: Universal Evaluation Board for Dual High Speed Op Amps Offered in 10-Lead, 3 mm × 3 mm LFCSP241.87 K
UG-337: Universal Evaluation Board for Dual, High Speed Op Amps Offered in 10-Lead MSOP Packages284 kB
UG-267: Universal Evaluation Board for Dual High Speed Op Amps Offered in 8-Lead 3 mm × 3 mm LFCSP
Documentation & Resources
AN-851: A WiMax Double Downconversion IF Sampling Receiver Design (Rev. 0)7/26/2006262 kB
AN-692: Universal Precision Op Amp Evaluation Board (Rev. A)12/4/2003621 kB
AN-414: Low Cost, Low Power Devices for HDSL Applications9/25/200241 kB
UG-128: Universal Evaluation Board for Dual High Speed Op Amps in SOIC Packages4/19/2010208 kB
MT-059: Compensating for the Effects of Input Capacitance on VFB and CFB Op Amps Used in Current-to-Voltage Converters2/14/201569 kB
MT-057: High Speed Current Feedback Op Amps5/6/200978 kB
MT-051: Current Feedback Op Amp Noise Considerations5/6/200936 kB
MT-034: Current Feedback (CFB) Op Amps3/26/2009130 kB
Tools & Simulations
AD812 SPICE Macro Model
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|
|AD812ANZ||Material Declaration||Reliability Data||8-Lead PDIP|
|AD812ARZ||Material Declaration||Reliability Data||8-Lead SOIC|
|AD812ARZ-REEL||Material Declaration||Reliability Data||8-Lead SOIC|
|AD812ARZ-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.
(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
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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.