参数资料
型号: LMC6484IMX/NOPB
厂商: National Semiconductor
文件页数: 8/24页
文件大小: 0K
描述: IC OP AMP QUAD CMOS R-R 14-SOIC
标准包装: 2,500
放大器类型: 通用
电路数: 4
输出类型: 满摆幅
转换速率: 1.3 V/µs
增益带宽积: 1.5MHz
电流 - 输入偏压: 0.02pA
电压 - 输入偏移: 110µV
电流 - 电源: 2.6mA
电流 - 输出 / 通道: 30mA
电压 - 电源,单路/双路(±): 3 V ~ 15.5 V,±1.5 V ~ 7.75 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 14-SOIC(0.154",3.90mm 宽)
供应商设备封装: 14-SOICN
包装: 带卷 (TR)
产品目录页面: 1266 (CN2011-ZH PDF)
其它名称: *LMC6484IMX
LMC6484IMX
LMC6484IMXTR
Application Information (Continued)
10.0 Instrumentation Circuits
The LMC6484 has the high input impedance, large
common-mode range and high CMRR needed for designing
instrumentation circuits. Instrumentation circuits designed
with
the
LMC6484
can
reject
a
larger
range
of
common-mode signals than most in-amps. This makes in-
strumentation circuits designed with the LMC6484 an excel-
lent choice for noisy or industrial environments. Other appli-
cations that benefit from these features include analytic
medical instruments, magnetic field detectors, gas detectors,
and silicon-based transducers.
A small valued potentiometer is used in series with Rg to set
the differential gain of the 3 op-amp instrumentation circuit in
Figure 15. This combination is used instead of one large
valued potentiometer to increase gain trim accuracy and
reduce error due to vibration.
DS011714-28
FIGURE 14. Operating from the same
Supply Voltage, the LMC6484 buffers the
ADC12038 maintaining excellent accuracy
DS011714-29
FIGURE 15. Low Power 3 Op-Amp Instrumentation Amplifier
LMC6484
www.national.com
15
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