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參數(shù)資料
| 型號(hào)： | THS4504DGKR |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | WIDEBAND, LOW-DISTORTION, FULLY DIFFERENTIAL AMPLIFIERS |
| 中文描述： | 寬帶，低失真，全差分放大器 |
| 文件頁(yè)數(shù)： | 28/38頁(yè) |
| 文件大小： | 1094K |
| 代理商： | THS4504DGKR |
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(18)
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+
fully-diff
amp
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2R
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R
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(23)
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(24)
Noise Factor and Noise Figure Calculations
N
A
Noise Source
Scale Factor
F
1
N
A
N
I
NF
10 log (F)
(25)
(26)
(27)
PC BOARD LAYOUT TECHNIQUES FOR
OPTIMAL PERFORMANCE
Achieving optimum performance with a high fre-
quency amplifier-like devices in the THS4500 family
requires careful attention to board layout parasitic and
external component types.
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(12)
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(14)
(15)
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THS4504
THS4505
SLOS363C–AUGUST 2002–REVISED MARCH 2004
sumes that the voltage source is properly terminated
by the gain-setting resistors. With these scaling
factors, the amplifier's input noise power (N
) can be
calculated by summing each individual noise source
with its scaling factor. The noise delivered to the
amplifier by the source (N
) and input noise power are
used to calculate the noise factor and noise figure as
shown in equations 23 through 27.
Figure 90. Scaling Factors for Individual
Noise Sources Assuming No Termination
Resistance is Used (e.g., R
T
is open).
Figure 88. Noise Sources in a Fully
Differential Amplifier Circuit
Figure 91. Input Noise With a Termination Re-
sistor
Figure 92. Input Noise Assuming
No Termination Resistor
Figure 89. Scaling Factors for Individual
Noise Sources Assuming a Finite
Value Termination Resistor
Recommendations that optimize performance include:
28
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| THS4504DGKRG4 | 功能描述:特殊用途放大器 Wideband Lo-Noise Lo-Distortion RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
| THS4504DGN | 功能描述:特殊用途放大器 Wideband Lo-Noise Lo-Distortion RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
| THS4504DGN | 制造商:Texas Instruments 功能描述:IC OP-AMP DIFF 210MHZ SGL 8MSOP |
| THS4504DGNG4 | 功能描述:特殊用途放大器 Wideband Lo-Noise Lo-Distortion RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
| THS4504DGNR | 功能描述:特殊用途放大器 Wideband Lo-Noise Lo-Distortion RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
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