參數(shù)資料
型號: THS3095DR
廠商: Texas Instruments, Inc.
英文描述: HIGH-VOLTAGE, LOW-DISTORTION, CURRENT-FEEDBACK OPERATIONAL AMPLIFIERS
中文描述: 高壓,低失真,電流反饋運(yùn)算放大器
文件頁數(shù): 19/31頁
文件大?。?/td> 1083K
代理商: THS3095DR
www.ti.com
WIDEBAND, INVERTING OPERATION
Figure 60 shows the THS3091 in a typical inverting
gain
configuration
where
impedances and signal gain from Figure 59 are
retained in an inverting circuit configuration.
+
THS3091
49.9
50-
Source
V
I
+V
S
R
F
1.21 k
R
G
1.21 k
+V
S
2
+V
S
2
_
+
THS3091
499
R
T
50-
Source
V
I
V
S
R
F
1 k
+V
S
2
+V
S
2
56.2
R
G
R
T
49.9
49.9
50-
LOAD
50-
LOAD
+
THS3091
R
G
499
R
M
56.2
0.1
μ
F
6.8
μ
F
+
V
S
15 V
50-
Source
V
I
0.1
μ
F
6.8
μ
F
+
+V
S
15 V
R
F
1 k
49.9
50-
LOAD
Video Distribution
SINGLE-SUPPLY OPERATION
The THS3091/5 have the capability to operate from a
single-supply voltage ranging from 10 V to 30 V.
When operating from a single power supply, biasing
the input and output at mid-supply allows for the
maximum output voltage swing. The circuits shown in
Figure 61 show inverting and noninverting amplifiers
configured for single-supply operations.
+
75
75
75
75
75
n Lines
V
O(1)
V
O(n)
75-
Transmission Line
V
I
1.21 k
1.21 k
15 V
15 V
THS3091
THS3095
SLOS423C–SEPTEMBER 2003–REVISED AUGUST 2004
the
input
and
output
Figure 61. DC-Coupled, Single-Supply Operation
Figure 60. Wideband, Inverting Gain
Configuration
The wide bandwidth, high slew rate, and high output
drive current of the THS3091/5 matches the demands
for video distribution for delivering video signals down
multiple cables. To ensure high signal quality with
minimal degradation of performance, a 0.1-dB gain
flatness
should
be
at
frequency to minimize group delay variations from the
amplifier. A high slew rate minimizes distortion of the
video signal, and supports component video and
RGB video signals that require fast transition times
and fast settling times for high signal quality.
least
7x
the
passband
Figure 62. Video Distribution Amplifier
Application
19
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