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AD8227ARZ PDF预览

AD8227ARZ

更新时间： 2024-02-22 03:56:40
品牌 Logo 应用领域
亚德诺 - ADI 仪表放大器
页数 文件大小 规格书
24页 521K
描述
Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier

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中文翻译

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AD8227ARZ 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：SOIC
包装说明：SOP, SOP8,.25针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.33.00.01风险等级：5.65
放大器类型：INSTRUMENTATION AMPLIFIER最大平均偏置电流 (IIB)：0.027 µA
标称带宽 (3dB)：0.25 MHz最小共模抑制比：110 dB
最大输入失调电流 (IIO)：0.0015 µA最大输入失调电压：100 µV
JESD-30 代码：R-PDSO-G8JESD-609代码：e3
长度：4.9 mm湿度敏感等级：1
负供电电压上限：-18 V标称负供电电压 (Vsup)：-15 V
最大非线性：0.015%功能数量：1
端子数量：8最高工作温度：125 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP8,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：225电源：+-1.5/+-18/2.2/36 V
认证状态：Not Qualified座面最大高度：1.75 mm
标称压摆率：0.8 V/us子类别：Instrumentation Amplifier
最大压摆率：0.6 mA供电电压上限：18 V
标称供电电压 (Vsup)：15 V表面贴装：YES
温度等级：AUTOMOTIVE端子面层：MATTE TIN
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
最大电压增益：1000最小电压增益：5
宽度：3.9 mmBase Number Matches：1

AD8227ARZ 数据手册

 浏览型号AD8227ARZ的Datasheet PDF文件第18页浏览型号AD8227ARZ的Datasheet PDF文件第19页浏览型号AD8227ARZ的Datasheet PDF文件第20页浏览型号AD8227ARZ的Datasheet PDF文件第22页浏览型号AD8227ARZ的Datasheet PDF文件第23页浏览型号AD8227ARZ的Datasheet PDF文件第24页 
AD8227  
The other AD8227 terminals should be kept within the supplies.  
All terminals of the AD8227 are protected against ESD.  
INPUT BIAS CURRENT RETURN PATH  
The input bias current of the AD8227 must have a return path to  
ground. When the source, such as a thermocouple, cannot provide  
a return current path, one should be created, as shown in Figure 62.  
For applications where the AD8227 encounters voltages beyond  
the allowed limits, external current limiting resistors and low  
leakage diode clamps such as the BAꢀ199L, the FJH1100s, or  
the SP720 should be used.  
INCORRECT  
+V  
CORRECT  
+V  
S
S
RADIO FREQUENCY INTERFERENCE (RFI)  
RF rectification is often a problem when amplifiers are used in  
applications that have strong RF signals. The disturbance can  
appear as a small dc offset voltage. High frequency signals can  
be filtered with a low-pass RC network placed at the input of  
the instrumentation amplifier, as shown in Figure 63. The filter  
limits the input signal bandwidth, according to the following  
relationship:  
AD8227  
AD8227  
REF  
REF  
REF  
REF  
–V  
S
–V  
S
TRANSFORMER  
TRANSFORMER  
1
+V  
+V  
S
S
FilterFrequencyDIFF  
FilterFrequencyCM  
=
2πRꢁ2CD +CC )  
1
=
2πRCC  
AD8227  
AD8227  
REF  
where CD ≥ 10 CC.  
10MΩ  
+V  
S
–V  
–V  
S
S
0.1µF  
+IN  
10µF  
THERMOCOUPLE  
THERMOCOUPLE  
C
1nF  
C
+V  
+V  
S
S
R
4.02kΩ  
C
C
C
V
C
D
10nF  
OUT  
R
G
AD8227  
R
R
1
R
REF  
fHIGH-PASS  
=
AD8227  
2πRC  
AD8227  
–IN  
4.02kΩ  
C
REF  
C
C
1nF  
0.1µF  
10µF  
–V  
–V  
S
S
–V  
S
CAPACITIVELY COUPLED  
CAPACITIVELY COUPLED  
Figure 63. RFI Suppression  
Figure 62. Creating an Input Bias Current Return Path  
CD affects the differential signal and CC affects the common-  
mode signal. ꢀalues of R and CC should be chosen to minimize  
RFI. A mismatch between R × CC at the positive input and  
R × CC at the negative input degrades the CMRR of the AD8227.  
By using a value of CD one magnitude larger than CC, the effect  
of the mismatch is reduced, and performance is improved.  
INPUT PROTECTION  
The AD8227 has very robust inputs and typically does not need  
additional input protection. Input voltages can be up to 40 ꢀ  
from the opposite supply rail. For example, with a +5 ꢀ positive  
supply and a −8 ꢀ negative supply, the part can safely withstand  
voltages from −35 ꢀ to +32 ꢀ. Unlike some other instrumentation  
amplifiers, the part can handle large differential input voltages  
even when the part is in high gain. Figure 17 through Figure 20  
show the behavior of the part under overvoltage conditions.  
Rev. 0 | Page 21 of 24  
 
 
 
 
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AD8227ARZ 替代型号

型号 品牌 替代类型 描述 数据表
AD8227BRZ ADI

类似代替

 		Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier
AD8227ARZ-R7 ADI

类似代替

 		Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier

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