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參數(shù)資料
| 型號： | LMP2012 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | High Precision, Rail-to-Rail Output Operational Amplifier |
| 中文描述： | 高精度，軌到軌輸出運(yùn)算放大器 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 688K |
| 代理商： | LMP2012 |
Application Information
(Continued)
TABLE 1. Composite Amplifier Measured Performance
AV
R1
200
100
1k
200
100
R2
10k
10k
100k
100k
100k
C2
pF
8
10
0.67
1.75
2.2
BW
MHz
3.3
2.5
3.1
1.4
0.98
SR
(V/μs)
178
174
170
96
64
en p-p
(mV
PP
)
37
70
70
250
400
50
100
100
500
1000
In terms of the measured output peak-to-peak noise, the
following relationship holds between output noise voltage, e
n
p-p, for different closed-loop gain, A
V
, settings, where 3 dB
Bandwidth is BW:
It should be kept in mind that in order to minimize the output
noise voltage for a given closed-loop gain setting, one could
minimize the overall bandwidth. As can be seen from Equa-
tion 1 above, the output noise has a square-root relationship
to the Bandwidth.
In the case of the inverting configuration, it is also possible to
increase the input impedance of the overall amplifier, by
raising the value of R1, without having to increase the feed-
back resistor, R2, to impractical values, by utilizing a "Tee"
network as feedback. See the LMC6442 data sheet (Appli-
cation Notes section) for more details on this.
20071519
FIGURE 5.
20071520
FIGURE 6.
20071521
FIGURE 7.
L
www.national.com
12
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| LMP2012MA | 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 |
| LMP2012MA/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 |
| LMP2012MAX | 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 |
| LMP2012MAX/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 |
| LMP2012MM | 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 |
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