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參數(shù)資料
| 型號： | LM6482 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | CMOS Dual Rail-To-Rail Input and Output Operational Amplifier |
| 中文描述： | CMOS雙軌至軌輸入和輸出運(yùn)算放大器 |
| 文件頁數(shù)： | 16/22頁 |
| 文件大?。?/td> | 1001K |
| 代理商： | LM6482 |
Application Information
(Continued)
10.0 Instrumentation Circuits
The LMC6482 has the high input impedance, large
common-mode range and high CMRR needed for designing
instrumentation circuits. Instrumentation circuits designed
with
the
LMC6482
can
common-mode signals than most in-amps. This makes in-
strumentation circuits designed with the LMC6482 an excel-
lent choice of noisy or industrial environments. Other appli-
reject
a
larger
range
of
cations that benefit from these features include analytic
medical instruments, magnetic field detectors, gas detectors,
and silicon-based tranducers.
A small valued potentiometer is used in series with R
to set
the differential gain of the 3 op-amp instrumentation circuit in
Figure 15 This combination is used instead of one large val-
ued potentiometer to increase gain trim accuracy and reduce
error due to vibration.
A 2 op-amp instrumentation amplifier designed for a gain of
100 is shown in Figure 16 Low sensitivity trimming is made
DS011713-28
FIGURE 14. Operating from the same
Supply Voltage, the LMC6482 buffers the
ADC12038 maintaining excellent accuracy
DS011713-29
FIGURE 15. Low Power 3 Op-Amp Instrumentation Amplifier
www.national.com
16
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