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參數(shù)資料
| 型號(hào)： | LM6211MFX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Low Noise, RRO Operational Amplifier with CMOS Input and 24V Operation |
| 中文描述： | OP-AMP, 2800 uV OFFSET-MAX, 17 MHz BAND WIDTH, PDSO5 |
| 封裝： | SOT-23, 5 PIN |
| 文件頁數(shù)： | 18/19頁 |
| 文件大小： | 1091K |
| 代理商： | LM6211MFX |
Typical Applications
(Continued)
SENSOR INTERFACES
The low input bias current and low input referred noise of the
LM6211 make it ideal for sensor interfaces. These circuits
are required to sense voltages of the order of a few μV, and
currents amounting to less than a nA, and hence the op amp
needs to have low voltage noise and low input bias current.
Typical applications include infra-red (IR) thermometry, ther-
mocouple amplifiers and pH electrode buffers.
Figure 17
is
an example of a typical circuit used for measuring IR radia-
tion intensity, often used for estimating the temperature of an
object from a distance. The IR sensor generates a voltage
proportional to I, which is the intensity of the IR radiation
falling on it. As shown in
Figure 17
, K is the constant of
proportionality relating the voltage across the IR sensor (V
IN
)
to the radiation intensity, I. The resistances R
A
and R
B
are
selected to provide a high gain to amplify this voltage, while
C
F
is added to filter out the high frequency noise.
20120346
FIGURE 16. Method for C
F
selection
20120348
FIGURE 17. IR Radiation Sensor
L
www.national.com
18
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LM6211MFX/NOPB | 功能描述:運(yùn)算放大器 - 運(yùn)放 RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LM6218 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LM6218AH | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| LM6218AJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| LM6218AN | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Fast Settling Dual Operational Amplifiers |
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