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AD818AN Datasheet(PDF) 1 Page - Analog Devices |
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AD818AN Datasheet(HTML) 1 Page - Analog Devices |
1 / 16 page REV. C 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 that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective companies. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved. AD818 Low Cost, Low Power Video Op Amp FEATURES Low Cost Excellent Video Performance 55 MHz 0.1 dB Bandwidth (Gain = +2) 0.01% and 0.05 Differential Gain and Phase Errors High Speed 130 MHz Bandwidth (3 dB, G = +2) 100 MHz Bandwidth (3 dB, G+ = –1) 500 V/ s Slew Rate 80 ns Settling Time to 0.01% (VO = 10 V Step) High Output Drive Capability 50 mA Minimum Output Current Ideal for Driving Back Terminated Cables Flexible Power Supply Specified for Single (+5 V) and Dual ( 5 V to 15 V) Power Supplies Low Power: 7.5 mA Max Supply Current Available in 8-Lead SOIC and 8-Lead PDIP CONNECTION DIAGRAM 8-Lead Plastic Mini-DIP (N) and SOIC (R) Packages NULL –IN +IN OUTPUT NULL 1 2 3 4 8 7 6 5 –VS TOP VIEW +VS AD818 NC NC = NO CONNECT GENERAL DESCRIPTION The AD818 is a low cost video op amp optimized for use in video applications that require gains equal to or greater than +2 or –1. The AD818’s low differential gain and phase errors, single supply functionality, low power, and high output drive make it ideal for cable driving applications such as video cameras and professional video equipment. With video specs like 0.1 dB flatness to 55 MHz and low differ- ential gain and phase errors of 0.01% and 0.05 ∞, along with 50 mA of output current, the AD818 is an excellent choice for any video application. The 130 MHz 3 dB bandwidth (G = +2) and 500 V/ ms slew rate make the AD818 useful in many high speed applications including video monitors, CATV, color copiers, image scanners, and fax machines. The AD818 is fully specified for operation with a single +5 V power supply and with dual supplies from ±5 V to ±15 V. This power supply flexibility, coupled with a very low supply current of 7.5 mA and excellent ac characteristics under all power sup- ply conditions, make the AD818 the ideal choice for many demanding yet power sensitive applications. The AD818 is a voltage feedback op amp and excels as a gain stage in high speed and video systems (gain ≥ 2, or gain £ –1). It achieves a settling time of 45 ns to 0.1%, with a low input offset voltage of 2 mV max. The AD818 is available in low cost, small 8-lead PDIP and SOIC packages. AD818 1k +15V RBT 75 RT 75 VIN 75 –15V 0.1 F 2.2 F 0.01 F 2.2 F 1k Figure 1. Video Line Driver 0.03 15 0.06 0.04 0.05 510 SUPPLY VOLTAGE ( V) 0.02 0.01 0.00 DIFF GAIN DIFF PHASE Figure 2. Differential Gain and Phase vs. Supply |
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