Application Information (Continued) A 2 op-amp instrumentation amplifier designed for a gain of 100 is " />
參數(shù)資料
型號(hào): LMC6484IN/NOPB
廠商: National Semiconductor
文件頁(yè)數(shù): 9/24頁(yè)
文件大小: 0K
描述: IC OP AMP QUAD CMOS R-R 14-DIP
標(biāo)準(zhǔn)包裝: 25
放大器類型: 通用
電路數(shù): 4
輸出類型: 滿擺幅
轉(zhuǎn)換速率: 1.3 V/µs
增益帶寬積: 1.5MHz
電流 - 輸入偏壓: 0.02pA
電壓 - 輸入偏移: 110µV
電流 - 電源: 2.6mA
電流 - 輸出 / 通道: 30mA
電壓 - 電源,單路/雙路(±): 3 V ~ 15.5 V,±1.5 V ~ 7.75 V
工作溫度: -40°C ~ 85°C
安裝類型: 通孔
封裝/外殼: 14-DIP(0.300",7.62mm)
供應(yīng)商設(shè)備封裝: 14-DIP
包裝: 管件
產(chǎn)品目錄頁(yè)面: 1266 (CN2011-ZH PDF)
其它名稱: *LMC6484IN
*LMC6484IN/NOPB
LMC6484IN
Application Information (Continued)
A 2 op-amp instrumentation amplifier designed for a gain of
100 is shown in
Figure 16. Low sensitivity trimming is made
for offset voltage, CMRR and gain. Low cost and low power
consumption are the main advantages of this two op-amp
circuit.
Higher frequency and larger common-mode range applica-
tions are best facilitated by a three op-amp instrumentation
amplifier.
11.0 Spice Macromodel
A spice macromodel is available for the LMC6484. This
model includes accurate simulation of:
input common-mode voltage range
frequency and transient response
GBW dependence on loading conditions
quiescent and dynamic supply current
output swing dependence on loading conditions
and many more characteristics as listed on the macromodel
disk.
Contact your local National Semiconductor sales office to
obtain an operational amplifier spice model library disk.
Typical Single-Supply Applications
The circuit in
Figure 17 use a single supply to half wave
rectify a sinusoid centered about ground. R
I limits current
into the amplifier caused by the input voltage exceeding the
supply voltage. Full wave rectification is provided by the
circuit in
Figure 19.
DS011714-30
FIGURE 16. Low-Power Two-Op-Amp Instrumentation Amplifier
DS011714-31
FIGURE 17. Half-Wave Rectifier with
Input Current Protection (RI)
DS011714-32
FIGURE 18. Half-Wave Rectifier Waveform
DS011714-33
FIGURE 19. Full Wave Rectifier
with Input Current Protection (R
I)
LMC6484
www.national.com
16
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