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AD812 Datasheet(PDF) 1 Page - Analog Devices |
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AD812 Datasheet(HTML) 1 Page - Analog Devices |
1 / 16 page AD812 a Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Dual, Current Feedback Low Power Op Amp PIN CONFIGURATION 8-Lead Plastic Mini-DIP and SOIC OUT1 –IN1 +IN1 V+ OUT2 –IN2 +IN2 V– AD812 + + 4 3 2 1 5 6 7 8 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1998 REV. B FEATURES Two Video Amplifiers in One 8-Lead SOIC Package Optimized for Driving Cables in Video Systems Excellent Video Specifications (RL = 150 ): Gain Flatness 0.1 dB to 40 MHz 0.02% Differential Gain Error 0.02 Differential Phase Error Low Power Operates on Single +3 V Supply 5.5 mA/Amplifier Max Power Supply Current High Speed 145 MHz Unity Gain Bandwidth (3 dB) 1600 V/ s Slew Rate Easy to Use 50 mA Output Current Output Swing to 1 V of Rails (150 Load) APPLICATIONS Video Line Driver Professional Cameras Video Switchers Special Effects PRODUCT DESCRIPTION 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 fea- tures gain flatness of 0.1 dB to 40 MHz while offering differen- tial 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. –0.1 –0.6 1M 100M 10M –0.2 –0.3 –0.4 –0.5 0 0.1 100k FREQUENCY – Hz 0.2 0.3 0.4 G = +2 RL = 150 5V 3V VS = 15V 5V Figure 1. Fine-Scale Gain Flatness vs. Frequency, Gain = +2, RL = 150 Ω 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 V p-p. Also, at gains of +2 the AD812 can swing 3 V p-p on a single +5 V power sup- ply. All this is offered in a small 8-lead plastic DIP or 8-lead 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 sup- plies up to ±15 V are available. The AD812 is available in the industrial temperature range of –40 °C to +85°C. 15 0.06 0.02 6 0.04 5 0.08 14 12 11 10 13 9 8 7 SUPPLY VOLTAGE – Volts 0.06 0.02 0.04 0 DIFFERENTIAL GAIN DIFFERENTIAL PHASE Figure 2. Differential Gain and Phase vs. Supply Voltage, Gain = +2, RL = 150 Ω |
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