Datasheet
_
+
THS3110
49.9 Ω
50 Ω Source
V
I
+V
S
R
F
1 kΩ
R
G
1 kΩ
+V
S
2
+V
S
2
_
+
THS3110
549 Ω
50 Ω Source
V
I
V
S
R
F
1.1 kΩ
+V
S
2
+V
S
2
56.2 Ω
R
G
R
T
R
T
49.9 Ω
49.9 Ω
50 Ω LOAD
50 Ω LOAD
_
+
THS3110
R
G
549 Ω
0.1 µF 6.8 µF
-V
S
-15 V
50 Ω Source
+
V
I
0.1 µF 6.8 µF
+
+V
S
15 V
R
F
1.1 kΩ
R
M
56.2 Ω
49.9 Ω
50 Ω LOAD
+
-
75 Ω
75 Ω
75 Ω
75 Ω
75 Ω
n Lines
V
O(1)
V
O(n)
75-Ω Transmission Line
V
I
1 kΩ
-15 V
15 V
1 kΩ
THS3110
THS3111
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........................................................................................................................................ SLOS422E –SEPTEMBER 2003–REVISED OCTOBER 2009
WIDEBAND, INVERTING OPERATION
Figure 52 shows the THS3111 in a typical inverting
gain configuration where the input and output
impedances and signal gain from Figure 51 are
retained in an inverting circuit configuration.
Figure 53. DC-Coupled, Single-Supply Operation
Figure 52. Wideband, Inverting Gain
Configuration
Video Distribution
The wide bandwidth, high slew rate, and high output
SINGLE-SUPPLY OPERATION
drive current of the THS3110 and THS3111 match
The THS3110 and THS3111 have the capability to
the demands for video distribution for delivering video
operate from a single-supply voltage ranging from
signals down multiple cables. To ensure high signal
10 V to 30 V. When operating from a single power
quality with minimal degradation of performance, a
supply, biasing the input and output at mid-supply
0.1-dB gain flatness should be at least 7x the
allows for the maximum output voltage swing. The
passband frequency to minimize group delay
circuits shown in Figure 53 shows inverting and
variations from the amplifier. A high slew rate
noninverting amplifiers configured for single supply
minimizes distortion of the video signal, and supports
operations.
component video and RGB video signals that require
fast transition times and fast settling times for high
signal quality.
Figure 54. Video Distribution Amplifier
Application
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Product Folder Link(s): THS3110 THS3111