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AD8013AN PDF预览

AD8013AN

更新时间: 2024-01-15 13:51:19
品牌 Logo 应用领域
亚德诺 - ADI 视频放大器
页数 文件大小 规格书
12页 321K
描述
Single Supply, Low Power, Triple Video Amplifier

AD8013AN 数据手册

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AD8013  
R
F
As noted in the warning under “Maximum Power Dissipation,”  
a high level of input overdrive in a high noninverting gain circuit  
can result in a large current flow in the input stage. T hough this  
current is internally limited to about 30 mA, its effect on the  
total power dissipation may be significant.  
1.0µF  
0.1µF  
+V  
4
S
R
G
15  
AD8013  
V
O
1.0µF  
0.1µF  
R
S
C
11  
V
L
IN  
H igh P er for m ance Video Line D r iver  
R
T
At a gain of +2, the AD8013 makes an excellent driver for a  
back terminated 75 video line (Figures 31, 32, and 33). Low  
differential gain and phase errors and wide 0.1 dB bandwidth  
can be realized. T he low gain and group delay matching errors  
ensure excellent performance in RGB systems. Figures 34 and  
35 show the worst case matching.  
–V  
S
Figure 28. Circuit for Driving a Capacitive Load  
Table II. Recom m ended Feedback and Series Resistors vs.  
Capacitive Load and Gain  
R
R
F
G
RS – O hm s  
+V  
4
S
C L pF  
RF – O hm s  
G = 2  
G 3  
0.1µF  
0.1µF  
75Ω  
CABLE  
20  
50  
100  
200  
300  
500  
2k  
2k  
3k  
4k  
6k  
7k  
25  
25  
20  
15  
15  
15  
15  
15  
15  
15  
15  
15  
75Ω  
75Ω  
CABLE  
AD8013  
V
OUT  
75Ω  
11  
V
IN  
75Ω  
–V  
S
Figure 31. A Video Line Driver Operating at a Gain of +2  
(RF = RG from Table I)  
500mV  
50ns  
100  
90  
V
IN  
G = +2  
R
= 150Ω  
0
L
PHASE  
GAIN  
V
= ±5V  
–90  
–180  
–270  
S
V
= +5V  
S
+1  
0
10  
V
OUT  
0%  
–1  
–2  
–3  
–4  
–5  
–6  
V
= ±5V  
S
1V  
V
= +5V  
Figure 29. Pulse Response Driving a Large Load Capacitor.  
CL = 300 pF, G = +2, RF = 6k, RS = 15 Ω  
S
O ver load Recover y  
T he three important overload conditions are: input common-  
mode voltage overdrive, output voltage overdrive, and input  
current overdrive. When configured for a low closed-loop gain,  
the amplifier will quickly recover from an input common-  
mode voltage overdrive; typically in under 25 ns. When con-  
figured for a higher gain, and overloaded at the output, the  
recovery time will also be short. For example, in a gain of +10,  
with 15% overdrive, the recovery time of the AD8013 is about  
20 ns (see Figure 30). For higher overdrive, the response is  
somewhat slower. For 6 dB overdrive, (in a gain of +10), the  
recovery time is about 65 ns.  
1M  
10M  
100M  
1G  
FREQUENCY – Hz  
Figure 32. Closed-Loop Gain & Phase vs. Frequency  
for the Line Driver  
G = +2  
R
= 150Ω  
L
+0.2  
+0.1  
0
–0.1  
–0.2  
–0.3  
–0.4  
–0.5  
V
= ±5V  
S
500mV  
50ns  
V
= +5V  
S
100  
90  
V
IN  
1M  
10M  
100M  
1G  
10  
V
FREQUENCY – Hz  
OUT  
0%  
5V  
Figure 33. Fine-Scale Gain Flatness vs. Frequency,  
G = +2, RL = 150 Ω  
Figure 30. 15% Overload Recovery, G = +10 (RF = 300 ,  
RL = 1 k, VS = ±5 V)  
REV. A  
–10–  

AD8013AN 替代型号

型号 品牌 替代类型 描述 数据表
AD8013AN ADI

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Single Supply, Low Power, Triple Video Amplifier
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