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參數資料
| 型號： | THS4211DGNG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 CHANNEL, VIDEO AMPLIFIER, PDSO8 |
| 封裝： | POWERPAD, GREEN, PLASTIC, MSOP-8 |
| 文件頁數： | 24/47頁 |
| 文件大小： | 1197K |
| 代理商： | THS4211DGNG4 |
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-4
-3
-2
-1
0
1
2
3
4
5
100 k
1 M
10 M
100 M
1 G
10 G
f - Frequency - Hz
Small
Signal
Gain
-
dB
_
+
49.9
499
PIN = -7 dBm
VS = ±5 V
L(nH) + K ln
2
W ) T
) 0.223
W ) T ) 0.5
where
W = Width of trace in inches.
= Length of the trace in inches
.
T = Thickness of the trace in inches.
K = 5.08 for dimensions in inches, and K = 2 for dimensions
in cm.
-5
-3
-1
1
3
5
7
9
11
13
15
17
10 M
100 M
1 G
f - Frequency - Hz
Small
Signal
Gain
-
dB
10 G
_
+
Rf
49.9
499
PIN = -7 dBm
VS = ±5 V
Rf = 200
Rf = 100
Rf = 0
Rf = 50
SLOS400E – SEPTEMBER 2002 – REVISED SEPTEMBER 2009 ................................................................................................................................... www.ti.com
Evaluation Fixtures, SPICE Models, and
Applications Support
Texas Instruments is committed to providing its
customers with the highest quality of applications
support. To support this goal, evaluation boards have
been
developed
for
the
THS4211
operational
amplifier. Three evaluation boards are available: one
THS4211 and one THS4215, both configurable for
different gains, and a third for untiy gain (THS4211
only). These boards are easy to use, allowing for
straightforward
evaluation
of
the
device.
These
evaluation boards can be ordered through the Texas
Instruments web site at www.ti.com, or through your
local
Texas
Instruments
sales
representative.
Schematics for the evaluation boards are shown
Figure 94. Frequency Response Using the
below.
EDGE #6443547 G = +1 EVM
The
THS4211/THS4215
EVM
board
shown
in
The frequency-response peaking is due to the lead
gain configurations. Its default component values are
inductance in the feedback path. Each pad and trace
set to give a gain of 2. The EVM can be configured
on a PCB has an inductance associated with it, which
for
unity-gain;
however,
it
is
strongly
not
in conjunction with the inductance associated with the
recommended. Evaluating the THS4211/THS4215 in
package may cause frequency-response peaking,
unity-gain using this EVM may cause the device to
causing the device to become unstable.
become unstable. The stability of the device can be
controlled by adding a large resistor in the feedback
In order to achieve the maximum performance of the
path, but performance is sacrificed. Figure 93 shows
device, PCB layout is very critical. Texas Instruments
the small-signal frequency response of the THS4211
has developed an EVM for the evaluation of the
with different feedback resistors in the feedback path.
THS4211 configured for a gain of 1. The EVM is
Figure 94 is the small frequency response of the
shown in Figure 100 through Figure 104. This EVM is
THS4211 using the unity-gain EVM.
designed to minimize peaking in the unity-gain
configuration.
Minimizing the inductance in the feedback path is
critical for reducing the peaking of the frequency
response in unity-gain. The recommended maximum
inductance allowed in the feedback path is 4 nH. This
inductance can be calculated using Equation 8:
(8)
space
Figure 93. Frequency Response vs Feedback
Resistor Using the EDGE #6439527 EVM
30
Copyright 2002–2009, Texas Instruments Incorporated
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相關代理商/技術參數 |
參數描述 |
|---|---|
| THS4211DGNR | 功能描述:高速運算放大器 Super-Fast Ultr-Lo- Distortion Hi-Speed RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS4211DGNRG4 | 功能描述:高速運算放大器 Super-Fast Ultr-Lo- Distortion Hi-Speed RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS4211DR | 功能描述:高速運算放大器 Super-Fast Ultr-Lo- Distortion Hi-Speed RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS4211DRB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| THS4211DRBR | 功能描述:高速運算放大器 Super-Fast Ultr-Lo- Distortion Hi-Speed RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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