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參數(shù)資料
| 型號： | THS3125IDR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 CHANNEL, VIDEO AMPLIFIER, PDSO14 |
| 封裝： | GREEN, PLASTIC, SOIC-14 |
| 文件頁數(shù)： | 3/34頁 |
| 文件大小： | 1276K |
| 代理商： | THS3125IDR |
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THS3125
470 W
49.9 W
56.2
R
W
M
R
G
470 W
0.1
F
m
+
6.8
F
m
0.1
F
m
+
6.8
F
m
50-
Load
W
50-
Source
W
R
F
V
I
+V
S
-VS
-15V
+15V
THS3125
470 W
49.9 W
470
R
W
G
0.1
F
m
+
6.8
F
m
0.1
F
m
+
6.8
F
m
50-
Load
W
50-
Source
W
R
F
V
I
+V
S
-VS
-15V
+15V
SLOS382D
– SEPTEMBER 2001 – REVISED FEBRUARY 2011
APPLICATION INFORMATION
Current-feedback amplifiers are highly dependent on
Maximum Slew Rate for Repetitive Signals
the feedback resistor RF for maximum performance
The THS3125 and THS3122 are recommended for
and stability. Table 1 shows the optimal gain setting
high slew rate pulsed applications where the internal
resistors RF and RG at different gains to give
nodes of the amplifier have time to stabilize between
maximum bandwidth with minimal peaking in the
pulses. It is recommended to have at least 20-ns
frequency response. Higher bandwidths can be
delay between pulses.
achieved, at the expense of added peaking in the
frequency response, by using even lower values for
The THS3125 and THS3122 are not recommended
RF.
Conversely,
increasing
RF
decreases
the
for applications with repetitive signals (sine, square,
bandwidth, but stability is improved.
sawtooth, or other) that exceed 900 V/
s. Using the
part in these applications results in excessive current
Table 1. Recommended Resistor Values for
draw from the power supply and possible device
Optimum Frequency Response
damage.
THS3125 and THS3122 RF and RG VALUES FOR MINIMAL
For applications with high slew rate, repetitive signals,
PEAKING WITH RL = 50 Ω, ±5-V to ±15-V POWER SUPPLY
GAIN (V/V)
RG (Ω)
RF (Ω)
and
(dual
versions)
are
1
—
560
recommended.
2
470
4
66.5
200
Wideband, Noninverting Operation
The THS3125 and THS3122 are unity gain stable
Wideband, Inverting Operation
130-MHz
current-feedback
operational
amplifiers,
designed to operate from a
±5-V to ±15-V power
Figure 38 shows the THS3125 in a typical inverting
supply.
gain
configuration
where
the
input
and
output
impedances from Figure 37 are retained in an
Figure 37 shows the THS3125 in a noninverting gain
inverting circuit configuration.
of 2-V/V configuration used to generate the typical
characteristic curves. Most of the curves were
characterized using signal sources with 50-
Ω source
impedance and with measurement equipment that
presents a 50-
Ω load impedance.
Figure 38. Wideband, Inverting Gain
Configuration
Figure 37. Wideband, Noninverting Gain
Configuration
2001–2011, Texas Instruments Incorporated
11
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| THS3125IDRG4 | 功能描述:高速運算放大器 Dual High Output Current 120-MHz RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS3125IPWP | 功能描述:高速運算放大器 Dual High Output Current 120-MHz RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS3125IPWPG4 | 功能描述:高速運算放大器 Dual High Output Current 120-MHz RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS3125IPWPR | 功能描述:高速運算放大器 Dual High Output Current 120-MHz RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS3125IPWPRG4 | 功能描述:高速運算放大器 Dual High Output Current 120-MHz RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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