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參數資料
| 型號： | LMC6081AMN |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 運算放大器 |
| 英文描述： | Precision CMOS Single Operational Amplifier |
| 中文描述： | OP-AMP, 350 uV OFFSET-MAX, 1.3 MHz BAND WIDTH, PDIP8 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-8 |
| 文件頁數： | 9/12頁 |
| 文件大小： | 304K |
| 代理商： | LMC6081AMN |
Latchup
(Continued)
rent required to trigger the SCR gate lead. The LMC6061
and LMC6081 are designed to withstand 100 mA surge cur-
rent on the I/O pins. Some resistive method should be used
to isolate any capacitance from supplying excess current to
the I/O pins. In addition, like an SCR, there is a minimum
holding current for any latchup mode. Limiting current to the
supply pins will also inhibit latchup susceptibility.
Typical Single-Supply
Applications
(V
+
= 5.0 V
DC
)
The extremely high input impedance, and low power con-
sumption, of the LMC6081 make it ideal for applications that
require battery-powered instrumentation amplifiers. Ex-
amples of these types of applications are hand-held pH
probes, analytic medical instruments, magnetic field detec-
tors, gas detectors, and silicon based pressure transducers.
Figure 7 shows an instrumentation amplifier that features
high differential and common mode input resistance
(
>
10
14
), 0.01% gain accuracy at A
= 1000, excellent
CMRR with 1 k
imbalance in bridge source resistance. In-
put current is less than 100 fA and offset drift is less than
2.5 μV/C. R
provides a simple means of adjusting gain
over a wide range without degrading CMRR. R
is an initial
trim used to maximize CMRR without using super precision
matched resistors. For good CMRR over temperature, low
drift resistors should be used.
DS011423-11
If R
1
= R
5
, R
3
= R
6
, and R
4
= R
7
; then
A
V
≈
100 for circuit shown (R
2
= 9.822k).
FIGURE 7. Instrumentation Amplifier
DS011423-12
FIGURE 8. Low-Leakage Sample and Hold
www.national.com
9
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相關代理商/技術參數 |
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| LMC6081BJE WAF | 制造商:Texas Instruments 功能描述: |
| LMC6081IM | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LMC6081IM/NOPB | 功能描述:運算放大器 - 運放 Prec CMOS Sgl Op Amp RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LMC6081IMX | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LMC6081IMX/NOPB | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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