參數(shù)資料
型號(hào): THS4042DGN
廠商: Texas Instruments, Inc.
英文描述: 165-MHz C-STABLE HIGH-SPEED AMPLIFIERS
中文描述: 165兆赫的C -穩(wěn)定高速放大器
文件頁(yè)數(shù): 15/28頁(yè)
文件大?。?/td> 479K
代理商: THS4042DGN
THS4041, THS4042
165-MHz C-STABLE HIGH-SPEED AMPLIFIERS
SLOS237B– MAY 1999 – REVISED FEBRUARY 2000
15
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 64 shows the noise figure graph for the THS404x.
0
5
10
15
20
25
30
35
40
NOISE FIGURE
vs
SOURCE RESISTANCE
Source Resistance –
N
100
1k
10k
10
100k
f = 10 kHz
TA = 25
°
C
Figure 64. Noise Figure vs Source Resistance
相關(guān)PDF資料
PDF描述
THS4042EVM 165-MHz C-STABLE HIGH-SPEED AMPLIFIERS
THS4041CDGNG4 165-MHz C-STABLE HIGH-SPEED AMPLIFIERS
THS4061D 180-MHz HIGH-SPEED AMPLIFIERS
THS4061JG 180-MHz HIGH-SPEED AMPLIFIERS
THS4061DGN 180-MHz HIGH-SPEED AMPLIFIERS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS4042EVM 功能描述:放大器 IC 開(kāi)發(fā)工具 THS4042 Hi-Spd Amp Eval Mod RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類(lèi)型:Power Amplifiers 工具用于評(píng)估:IR4302 工作電源電壓:13 V to 23 V
THS4042ID 功能描述:高速運(yùn)算放大器 Dual 165MHz RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)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
THS4042IDG4 功能描述:高速運(yùn)算放大器 165-MHz C-Stable Volt-Fdback Amp Dual RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)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
THS4042IDGN 功能描述:高速運(yùn)算放大器 165-MHz C-Stable Volt-Fdback Amp Dual RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)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
THS4042IDGNG4 功能描述:高速運(yùn)算放大器 165-MHz C-Stable Volt-Fdback Amp Dual RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)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