Datasheet AD8072, AD8073 (Analog Devices)

a
Low Cost, Dual/Triple Video Amplifiers AD8072/AD8073 FEATURES PIN CONFIGURATIONS Very Low Cost 8-Lead Plastic (N), SOIC (R), and
␮
SOIC (RM) Packages Good Video Specifications (RL = 150
⍀
) Gain Flatness of 0.1 dB to 10 MHz 0.05% Differential Gain Error OUT1 1 8 +VS 0.1
ⴗ
Differential Phase Error –IN1 2 7 OUT2 Low Power +IN1 3 6 –IN2 3.5 mA/Amplifier Supply Current –V 4 5 S +IN2 Operates on Single 5 V to 12 V Supply AD8072 High Speed TOP VIEW (Not to Scale) 100 MHz, –3 dB Bandwidth (G = +2) 500 V/
␮
s Slew Rate 14-Lead Plastic (N), and SOIC (R) Packages Fast Settling Time of 25 ns (0.1%) Easy to Use 30 mA Output Current NC 1 14 OUT2 Output Swing to 1.3 V of Rails on Single 5 V Supply NC 2 13 –IN2 APPLICATIONS NC 3 12 +IN2 AD8073 Video Line Driver +V 4 TOP VIEW 11 S –VS (Not to Scale) Computer Video Plug-In Boards +IN1 5 10 +IN3 RGB or S-Video Amplifier in Component Systems –IN1 6 9 –IN3 7 OUT1 8 OUT3 PRODUCT DESCRIPTION
The AD8072 (dual) and AD8073 (triple) are low cost, current
NC = NO CONNECT
feedback amplifiers intended for high volume, cost sensitive applications. In addition to being low cost, these amplifiers deliver solid video performance into a 150 Ω load while consuming
6.1 7
only 3.5 mA per amplifier of supply current. Furthermore, the AD8073 is three amplifiers in a single 14-lead narrow-body
6.0 6
SOIC package. This makes it ideal for applications where small
5
size is essential. Each amplifier’s inputs and output are acces-
5.9 dB
sible providing added gain setting flexibility.
dB – – 5.8 4
These devices provide 30 mA of output current per amplifier,
5.7 3
and are optimized for driving one back terminated video load
VS =
ⴞ
5V 1 dB V
(150 Ω) each. These current feedback amplifiers feature gain
O = 2V p-p DIV 5.6 2 RF = RG = 1k
⍀ flatness of 0.1 dB to 10 MHz while offering differential gain and
GAIN FLATNESS RL = 150
⍀
0.1 dB
phase error of 0.05% and 0.1°. This makes the AD8072 and
5.5 1 AV =
ⴙ
2 DIV CLOSED-LOOP GAIN
AD8073 ideal for business and consumer video electronics.
5.4 0
Both will operate from a single 5 V to 12 V power supply. The outputs of each amplifier swing to within 1.3 volts of either sup-
5.3 –1 0.1 1 10 100 500
ply rail to accommodate video signals on a single 5 V supply.
FREQUENCY – MHz
The high bandwidth of 100 MHz, 500 V/µs of slew rate, along Figure 1. Large Signal Frequency Response with settling to 0.1% in 25 ns, make the AD8072 and AD8073 useful in many general purpose, high speed applications where a single 5 V or dual power supplies up to ± 6 V are needed. The AD8072 is available in 8-lead plastic DIP, SOIC, and µSOIC packages while the AD8073 is available in 14-lead plastic DIP and SOIC packages. Both operate over the commercial temperature range of 0°C to 70°C. Additionally, the AD8072ARM operates over the industrial temperature range of –40°C to +85°C. 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
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