el8203 Intersil Corporation, el8203 Datasheet - Page 13

• Manufacturer Part Number: el8203
• Description: 500mhz Rail-to-rail Amplifiers
• Manufacturer: Intersil Corporation

SINGLE SUPPLY VIDEO LINE DRIVER
The EL8202, EL8203 and EL8403 are wideband rail-to-rail
output op amplifiers with large output current, excellent dG,
dP, and low distortion that allow them to drive video signals
in low supply applications. Figure 36 is the single supply
non-inverting video line driver configuration and Figure 37 is
the inverting video ling driver configuration. The signal is AC
coupled by C
and output to provide the largest output swing. R
set the AC gain. C
and R
C
luminance signal.
B
A
3
1V
2V
2MHz
2MHz
are selected big enough to minimize the droop of the
P-P
P-P
3
ENABLE
are the termination resistors for the line. C
75Ω
75Ω
FIGURE 34. TWO TO ONE MULTIPLEXER
1
A
. R
1K
1K
ENABLE
1
2
and R
isolates the virtual ground potential. R
+
-
+
-
FIGURE 35.
2
+2.5V
-2.5V
1K
+2.5V
-2.5V
1K
M = 50ns/DIV
are used to level shift the input
13
75Ω
B
EL8202, EL8203, EL8403
-0.5V
-1.5V
-2.5V
F
-1V
0V
1V
0V
1
and R
, C
2
and
G
V
75Ω
OUT
T
FIGURE 36. 5V SINGLE SUPPLY NON INVERTING
FIGURE 37. SINGLE SUPPLY INVERTING VIDEO LINE DRIVER
75Ω
75Ω
FIGURE 38. VIDEO LINE DRIVER FREQUENCY RESPONSE
V
V
R
R
IN
IN
T
T
47µF
-1
-2
-3
-4
-5
-6
100K
47µF
C
4
3
2
1
0
C
10K
1
R
1
10K
10K
2
1kΩ
R
R
R
VIDEO LINE DRIVER
1
2
500Ω
G
R
10K
R
5V
G
1
C
220µF
2
1kΩ
1M
+
-
R
C
220µF
5V
FREQUENCY (Hz)
F
1kΩ
R
-
2
+
5V
F
470µF
470µF
C
C
3
A
10M
3
V
= -2
75Ω
75Ω
R
R
3
3
A
100M 500M
V
= 2
V
V
OUT
75Ω
OUT
75Ω