RF RS RG
參數(shù)資料
型號(hào)： THS4032IDR
廠商： Texas Instruments
文件頁(yè)數(shù)： 16/47頁(yè)
文件大?。?/td> 0K
描述： IC OPAMP VFB 100MHZ DUAL 8SOIC
標(biāo)準(zhǔn)包裝： 2,500
放大器類型： 電壓反饋
電路數(shù)： 2
轉(zhuǎn)換速率： 100 V/µs
-3db帶寬： 100MHz
電流 - 輸入偏壓： 3µA
電壓 - 輸入偏移： 500µV
電流 - 電源： 8.5mA
電流 - 輸出 / 通道： 90mA
電壓 - 電源，單路/雙路(±)： 9 V ~ 32 V，±4.5 V ~ 16 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 8-SOIC
包裝： 帶卷 (TR)
配用： 296-10031-ND - EVAL MOD FOR THS4032
_
+
RF
RS
RG
eRg
eRf
eRs
en
IN+
Noiseless
IN
eni
eno
e
ni +
en
2
) IN )
R
S
2
) IN–
R
F
R
G
2
) 4 kTRs ) 4 kT RF RG
Where:
k = Boltzmann’s constant = 1.380658
× 1023
T = Temperature in degrees Kelvin (273 +
°C)
RF || RG = Parallel resistance of RF and RG
eno + eni AV + eni 1 )
R
F
R
G
(Noninverting Case)
www.ti.com
SLOS224G – JULY 1999 – REVISED MARCH 2010
NOISE CALCULATIONS AND NOISE FIGURE
Noise can cause errors on very small signals. This is especially true when amplifying small signals. The noise
model for the THS403x, shown in Figure 52, includes all of the noise sources as follows:
en = Amplifier internal voltage noise (nV/√Hz)
IN+ = Noninverting current noise (pA/
√Hz)
IN– = Inverting current noise (pA/
√Hz)
eRx = Thermal voltage noise associated with each resistor (eRx = 4 kTRx)
Figure 52. Noise Model
The total equivalent input noise density (eni) is calculated by using the following equation:
(1)
To get the equivalent output noise of the amplifier, just multiply the equivalent input noise density (eni) by the
overall amplifier gain (AV).
(2)
As the previous equations show, to keep noise at a minimum, small-value resistors should be used. As the
closed-loop gain is increased (by reducing RG), the input noise is reduced considerably because of the parallel
resistance term. This leads to the general conclusion that the most dominant noise sources are the source
resistor (RS) and the internal amplifier noise voltage (en). Because noise is summed in a root-mean-squares
method, noise sources smaller than 25% of the largest noise source can be effectively ignored. This advantage
can greatly simplify the formula and make noise calculations much easier to calculate.
For more information on noise analysis, refer to the application note, Noise Analysis for High-Speed Op Amps
Copyright 1999–2010, Texas Instruments Incorporated
23
Product Folder Link(s): THS4031 THS4032
相關(guān)PDF資料
PDF描述
5HFP 315-R FUSE 315MA 250VAC AXIAL FAST
5HFP 200-R FUSE 200MA 250VAC AXIAL FAST
P6KE27HE3/54 TVS 600W 27V 10% UNIDIR AXIAL
2-532431-2 CONN RCPT 54POS 3ROW .100 R/A
5HFP 500-R FUSE 500MA 250VAC AXIAL FAST
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS4032IDRG4 功能描述:高速運(yùn)算放大器 100-MHz Low Noise Vltg-Feedback 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
THS4032IOGN 制造商:Rochester Electronics LLC 功能描述:- Bulk
THS4032MDGNREP 功能描述:高速運(yùn)算放大器 LOW-NOISE,HI SPD OP AMP 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
THS4041 制造商:TI 制造商全稱:Texas Instruments 功能描述:165-MHz C-STABLE HIGH-SPEED AMPLIFIERS
THS4041CD 功能描述:高速運(yùn)算放大器 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*