參數(shù)資料
型號: THS4011EVM
廠商: Texas Instruments, Inc.
英文描述: 290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
中文描述: 290 - MHz的低失真高速放大器
文件頁數(shù): 16/30頁
文件大?。?/td> 439K
代理商: THS4011EVM
THS4011, THS4012
290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
SLOS216B – JUNE 1999 – FEBRUARY 2000
16
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
noise calculations and noise figure (continued)
This brings up another noise measurement usually preferred in RF applications, the noise figure (NF). Noise
figure is a measure of noise degradation caused by the amplifier. The value of the source resistance must be
defined and is typically 50
in RF applications.
NF
10log
e
2
ni
eRs
2
Because the dominant noise components are generally the source resistance and the internal amplifier noise
voltage, we can approximate noise figure as:
NF
10log
1
en
2
IN
RS
2
4 kTRS
Figure 26 shows the noise figure graph for the THS401x.
20
5
0
10
100
N
25
NOISE FIGURE
vs
SOURCE RESISTANCE
30
1 k
100 k
15
10
Source Resistance –
f = 10 kHz
TA = 25
°
C
10 k
Figure 26. Noise Figure vs Source Resistance
相關PDF資料
PDF描述
THS4011FK 290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
THS4011MFK 290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
THS4012D 290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
THS4012DGN 290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
THS4012EVM 290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
相關代理商/技術參數(shù)
參數(shù)描述
THS4011FK 制造商:TI 制造商全稱:Texas Instruments 功能描述:290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
THS4011ID 功能描述:高速運算放大器 290MHz Lw-Distortion 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
THS4011IDG4 功能描述:高速運算放大器 290MHz Low-Distort Vltg-Feedback Amp 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
THS4011IDGN 功能描述:高速運算放大器 290-MHz Low-Dist Volt-Feedback Amp 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
THS4011IDGNG4 功能描述:高速運算放大器 290-MHz Low-Dist Volt-Feedback Amp 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube