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INA118U/2K5 PDF预览

INA118U/2K5

更新时间： 2024-01-22 00:31:50
品牌 Logo 应用领域
BB 放大器光电二极管
页数 文件大小 规格书
16页 387K
描述
Instrumentation Amplifier, 1 Func, 225uV Offset-Max, 0.8MHz Band Width, PDSO8, GREEN, SOIC-8

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INA118U/2K5 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：SOIC
包装说明：SOIC-8针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.33.00.01Factory Lead Time：1 week
风险等级：0.76放大器类型：INSTRUMENTATION AMPLIFIER
最大平均偏置电流 (IIB)：0.005 µA标称带宽 (3dB)：0.8 MHz
最小共模抑制比：73 dB最大输入失调电流 (IIO)：0.00001 µA
最大输入失调电压：225 µVJESD-30 代码：R-PDSO-G8
JESD-609代码：e4长度：4.9 mm
湿度敏感等级：3负供电电压上限：-18 V
标称负供电电压 (Vsup)：-15 V最大非线性：0.02%
功能数量：1端子数量：8
最高工作温度：85 °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包装方法：TR
峰值回流温度（摄氏度）：260电源：+-15 V
认证状态：Not Qualified座面最大高度：1.75 mm
标称压摆率：0.9 V/us子类别：Instrumentation Amplifier
最大压摆率：0.385 mA供电电压上限：18 V
标称供电电压 (Vsup)：15 V表面贴装：YES
技术：BIPOLAR温度等级：INDUSTRIAL
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)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：10000
最小电压增益：1标称电压增益：10
宽度：3.9 mmBase Number Matches：1

INA118U/2K5 数据手册

 浏览型号INA118U/2K5的Datasheet PDF文件第5页浏览型号INA118U/2K5的Datasheet PDF文件第6页浏览型号INA118U/2K5的Datasheet PDF文件第7页浏览型号INA118U/2K5的Datasheet PDF文件第9页浏览型号INA118U/2K5的Datasheet PDF文件第10页浏览型号INA118U/2K5的Datasheet PDF文件第11页 
APPLICATION INFORMATION  
Figure 1 shows the basic connections required for operation  
of the INA118. Applications with noisy or high impedance  
power supplies may require decoupling capacitors close to  
the device pins as shown.  
The stability and temperature drift of the external gain  
setting resistor, RG, also affects gain. RG’s contribution to  
gain accuracy and drift can be directly inferred from the gain  
equation (1). Low resistor values required for high gain can  
make wiring resistance important. Sockets add to the wiring  
resistance which will contribute additional gain error (possi-  
bly an unstable gain error) in gains of approximately 100 or  
greater.  
The output is referred to the output reference (Ref) terminal  
which is normally grounded. This must be a low-impedance  
connection to assure good common-mode rejection. A resis-  
tance of 12Ω in series with the Ref pin will cause a typical  
device to degrade to approximately 80dB CMR (G = 1).  
DYNAMIC PERFORMANCE  
The typical performance curve “Gain vs Frequency” shows  
that, despite its low quiescent current, the INA118 achieves  
wide bandwidth, even at high gain. This is due to the  
current-feedback topology of the INA118. Settling time also  
remains excellent at high gain.  
SETTING THE GAIN  
Gain of the INA118 is set by connecting a single external  
resistor, RG, connected between pins 1 and 8:  
(1)  
50kΩ  
G = 1+  
The INA118 exhibits approximately 3dB peaking at 500kHz  
in unity gain. This is a result of its current-feedback topol-  
ogy and is not an indication of instability. Unlike an op amp  
with poor phase margin, the rise in response is a predictable  
+6dB/octave due to a response zero. A simple pole at  
300kHz or lower will produce a flat passband unity gain  
response.  
RG  
Commonly used gains and resistor values are shown in  
Figure 1.  
The 50kΩ term in Equation 1 comes from the sum of the two  
internal feedback resistors of A1 and A2. These on-chip  
metal film resistors are laser trimmed to accurate absolute  
values. The accuracy and temperature coefficient of these  
resistors are included in the gain accuracy and drift specifi-  
cations of the INA118.  
V+  
0.1µF  
7
–
VIN  
INA118  
2
1
Over-Voltage  
Protection  
A1  
DESIRED  
GAIN  
RG  
(Ω)  
NEAREST 1% RG  
V
O = G • (VI+N – VI–N  
)
60kΩ  
60kΩ  
(Ω)  
50kΩ  
RG  
25kΩ  
25kΩ  
G = 1 +  
1
2
5
10  
20  
NC  
NC  
49.9k  
12.4k  
5.62k  
2.61k  
1.02k  
511  
249  
100  
49.9  
24.9  
10  
50.00k  
12.50k  
5.556k  
2.632k  
1.02k  
505.1  
251.3  
100.2  
50.05  
25.01  
10.00  
5.001  
6
5
A3  
RG  
+
8
VO  
Load  
50  
–
100  
200  
500  
1000  
2000  
5000  
10000  
A2  
+
VIN  
3
Over-Voltage  
Protection  
Ref  
60kΩ  
60kΩ  
4
0.1µF  
4.99  
NC: No Connection.  
V–  
Also drawn in simplified form:  
–
VIN  
VO  
RG  
INA118  
Ref  
+
VIN  
FIGURE 1. Basic Connections.  
®
8
INA118  
1...567891011...16

中文翻译

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