Low Cost, Low Power Video Op Amp AD818 FEATURES CONNECTION DIAGRAM Low Cost 8-Lead Plastic Mini-DIP (N) and SOIC (R) Packages Excellent Video Performance 55 MHz 0.1 dB Bandwidth (Gain = +2) 0.01% and 0.05 Differential Gain and Phase Errors NULL NULL 1 8 AD818 High Speed 130 MHz Bandwidth (3 dB, G = +2) +V IN 2 7 S 100 MHz Bandwidth (3 dB, G+ = 1) +IN 3 6 OUTPUT 500 V/ s Slew Rate 80 ns Settling Time to 0.01% (V = 10 V Step) O V 4 5 NC S High Output Drive Capability TOP VIEW 50 mA Minimum Output Current NC = NO CONNECT Ideal for Driving Back Terminated Cables Flexible Power Supply any video application. The 130 MHz 3 dB bandwidth (G = +2) Specified for Single (+5 V) and Dual ( 5 V to 15 V) and 500 V/ms slew rate make the AD818 useful in many high speed Power Supplies applications including video monitors, CATV, color copiers, Low Power: 7.5 mA Max Supply Current image scanners, and fax machines. Available in 8-Lead SOIC and 8-Lead PDIP The AD818 is fully specified for operation with a single +5 V GENERAL DESCRIPTION power supply and with dual supplies from 5 V to 15 V. This The AD818 is a low cost video op amp optimized for use in power supply flexibility, coupled with a very low supply current video applications that require gains equal to or greater than +2 of 7.5 mA and excellent ac characteristics under all power sup- or 1. The AD818s low differential gain and phase errors, ply conditions, make the AD818 the ideal choice for many single supply functionality, low power, and high output drive demanding yet power sensitive applications. make it ideal for cable driving applications such as video The AD818 is a voltage feedback op amp and excels as a gain cameras and professional video equipment. stage in high speed and video systems (gain 2, or gain 1). It With video specs like 0.1 dB flatness to 55 MHz and low differ- achieves a settling time of 45 ns to 0.1%, with a low input offset ential gain and phase errors of 0.01% and 0.05, along with voltage of 2 mV max. 50 mA of output current, the AD818 is an excellent choice for The AD818 is available in low cost, small 8-lead PDIP and SOIC packages. +15V 0.02 0.01 F 2.2 F DIFF GAIN 0.01 R BT V IN 75 75 AD818 0.06 0.00 R T 75 0.05 DIFF PHASE 0.1 F 2.2 F 0.04 15V 1k 0.03 510 15 1k SUPPLY VOLTAGE ( V) Figure 2. Differential Gain and Phase vs. Supply Figure 1. Video Line Driver D REV. 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. may result from its use. No license is granted by implication or otherwise Tel: 781/329-4700 www.analog.com under any patent or patent rights of Analog Devices. Trademarks and Fax: 781.461-3113 2010 Analog Devices, Inc. All rights reserved. registered trademarks are the property of their respective companies. DIFFERENTIAL PHASE (Degrees) DIFFERENTIAL GAIN (%)AD818SPECIFICATIONS ( T = 25 C, unless otherwise noted.) A AD818A Parameter Conditions V Min Typ Max Unit S DYNAMIC PERFORMANCE 3 dB Bandwidth Gain = +2 5 V 70 95 MHz 15 V 100 130 MHz 0 V, +5 V 40 55 MHz Gain = 1 5 V 50 70 MHz 15 V 70 100 MHz 0 V, +5 V 30 50 MHz Bandwidth for 0.1 dB Flatness Gain = +2 5 V 20 43 MHz C = 2 pF 15 V 40 55 MHz C 0 V, +5 V 10 18 MHz Gain = 1 5 V 18 34 MHz C = 2 pF 15 V 40 72 MHz C 0 V, +5 V 10 19 MHz Full Power Bandwidth* V = 5 V p-p OUT R = 500 W5 V 25.5 MHz LOAD V = 20 V p-p OUT R = 1 kW15 V 8.0 MHz LOAD Slew Rate R = 1 kW5 V 350 400 V/ms LOAD Gain = 1 15 V 450 500 V/ms 0 V, +5 V 250 300 V/ms Settling Time to 0.1% 2.5 V to +2.5 V 5 V 45 ns 0 V10 V Step, A = 1 15 V 45 ns V Settling Time to 0.01% 2.5 V to +2.5 V 5 V 80 ns 0 V10 V Step, A = 1 15 V 80 ns V Total Harmonic Distortion F = 1 MHz 15 V 63 dB C Differential Gain Error NTSC 15 V 0.005 0.01 % (R = 150 W)Gain = +2 5 V 0.01 0.02 % L 0 V, +5 V 0.08 % Differential Phase Error NTSC 15 V 0.045 0.09 Degrees (R = 150 W)Gain = +2 5 V 0.06 0.09 Degrees L 0 V, +5 V 0.1 Degrees Cap Load Drive 10 pF INPUT OFFSET VOLTAGE 5 V to 15 V 0.5 2 mV T to T 3mV MIN MAX Offset Drift 10 mV/ C INPUT BIAS CURRENT 5 V, 15 V 3.3 6.6 mA T 10 mA MIN T 4.4 mA MAX INPUT OFFSET CURRENT 5 V, 15 V 25 300 nA T to T 500 nA MIN MAX Offset Current Drift 0.3 nA/ C OPEN-LOOP GAIN V = 2.5 V 5 V OUT R = 500 W 35 V/mV LOAD T to T 2 V/mV MIN MAX R = 150 W 24 V/mV LOAD V = 10 V 15 V OUT R = 1 kW 69 V/mV LOAD T to T 3 V/mV MIN MAX V = 7.5 V 15 V OUT R = 150 W LOAD (50 mA Output) 3 5 V/mV COMMON-MODE REJECTION V = 2.5 V 5 V 82 100 dB CM V = 12 V 15 V 86 120 dB CM T to T 15 V 84 100 dB MIN MAX 2 REV. D