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參數(shù)資料
| 型號： | LMC6044IN |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 運(yùn)動控制電子 |
| 英文描述： | CMOS Quad Micropower Operational Amplifier |
| 中文描述： | QUAD OP-AMP, 6000 uV OFFSET-MAX, 0.1 MHz BAND WIDTH, PDIP14 |
| 封裝： | PLASTIC, DIP-14 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 387K |
| 代理商： | LMC6044IN |
Typical Single-Supply Applications
(V+ = 5.0 V
DC
)
of the overall system design (see Printed-Circuit-Board Lay-
out for High Impedance Work). Referring to Figure 7 the in-
put voltages are represented as a common-mode input V
plus a differential input V
. Rejection of the common-mode
component of the input is accomplished by making the ratio
of R1/R2 equal to R3/R4. So that where,
The extremely high input impedance, and low power con-
sumption, of the LMC6044 make it ideal for applications that
require battery-powered instrumentation amplifiers. Ex-
amples of these type of applications are hand-held pH
probes, analytic medical instruments, magnetic field detec-
tors, gas detectors, and silicon based pressure transducers.
The circuit in Figure 7 is recommended for applications
where the common-mode input range is relatively low and
the differential gain will be in the range of 10 to 1000. This
two op-amp instrumentation amplifier features an indepen-
dent adjustment of the gain and common-mode rejection
trim, and a total quiescent supply current of less than 40 μA.
To maintain ultra-high input impedance, it is advisable to use
ground rings and consider PC board layout an important part
A suggested design guideline is to minimize the difference of
value between R1 through R4. This will often result in im-
proved resistor tempco, amplifier gain, and CMRR over tem-
perature. If RN = R1 = R2 = R3 = R4 then the gain equation
can be simplified:
Due to the “zero-in, zero-out” performance of the LMC6044,
and output swing rail-rail, the dynamic range is only limited to
the input common-mode range of 0V to V
–2.3V, worst case
at room temperature. This feature of the LMC6044 makes it
an ideal choice for low-power instrumentation systems.
A complete instrumentation amplifier designed for a gain of
100 is shown in Figure 8 Provisions have been made for low
sensitivity trimming of CMRR and gain.
DS011138-11
(Input pins are lifted out of PC board and soldered directly to components.
FIGURE 6. Air Wiring
DS011138-12
FIGURE 7. Two Op-Amp Instrumentation Amplifier
DS011138-13
FIGURE 8. Low-Power Two-Op-Amp
Instrumentation Amplifier
www.national.com
9
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| LMC6082AMN | Precision CMOS Dual Operational Amplifier |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMC6044IN | 制造商:Texas Instruments 功能描述:OP AMP QUAD MICROPOWER POWERWISE |
| LMC6044IN/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 |
| LMC6061 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Precision CMOS Single Micropower Operational Amplifier |
| LMC6061AIM | 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 |
| LMC6061AIM | 制造商:Texas Instruments 功能描述:IC OP AMP CMOS SMD 6061 SOIC8 |
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