Datasheet AD818 (Analog Devices)

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
ⴗ
Differential Gain and Phase Errors NULL 8 NULL High Speed 1 AD818 130 MHz Bandwidth (3 dB, G = +2) –IN 2 7 +VS 100 MHz Bandwidth (3 dB, G+ = –1) 500 V/
␮
s Slew Rate +IN 3 6 OUTPUT 80 ns Settling Time to 0.01% (VO = 10 V Step) –V 4 5 NC High Output Drive Capability S TOP VIEW 50 mA Minimum Output Current Ideal for Driving Back Terminated Cables NC = NO CONNECT Flexible Power Supply Specified for Single (+5 V) and Dual (
ⴞ
5 V to
ⴞ
15 V)
any video application. The 130 MHz 3 dB bandwidth (G = +2)
Power Supplies
and 500 V/ms slew rate make the AD818 useful in many high speed
Low Power: 7.5 mA Max Supply Current
applications including video monitors, CATV, color copiers,
Available in 8-Lead SOIC and 8-Lead PDIP
image scanners, and fax machines. 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 AD818’s 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 cameras and professional video equipment. 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 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 V BT IN 75
⍀
75
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AD818 0.06 0.00 RT DIFFERENTIAL GAIN (%) 75
⍀
0.05 DIFF PHASE 0.1
␮
F 2.2
␮
F 0.04 –15V 1k
⍀
0.03 DIFFERENTIAL PHASE (Degrees) 1k
⍀
5 10 15 SUPPLY VOLTAGE (
ⴞ
V)
Figure 1. Video Line Driver Figure 2. Differential Gain and Phase vs. Supply REV. D 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
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