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AD624ACHIPS

更新时间: 2024-02-16 13:44:25
品牌 Logo 应用领域
亚德诺 - ADI 仪表放大器放大器电路
页数 文件大小 规格书
15页 694K
描述
Precision Instrumentation Amplifier

AD624ACHIPS 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Active零件包装代码:DIP
包装说明:DIP,针数:16
Reach Compliance Code:unknown风险等级:5.78
放大器类型:INSTRUMENTATION AMPLIFIER最大平均偏置电流 (IIB):0.05 µA
标称带宽 (3dB):1 MHz最小共模抑制比:70 dB
最大输入失调电流 (IIO):0.035 µA最大输入失调电压:75 µV
JESD-30 代码:R-CDIP-T16JESD-609代码:e0
长度:19.05 mm湿度敏感等级:NOT SPECIFIED
负供电电压上限:-18 V标称负供电电压 (Vsup):-15 V
最大非线性:0.005%功能数量:1
端子数量:16最高工作温度:125 °C
最低工作温度:-55 °C封装主体材料:CERAMIC, METAL-SEALED COFIRED
封装代码:DIP封装形状:RECTANGULAR
封装形式:IN-LINE峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:COMMERCIAL座面最大高度:5.08 mm
标称压摆率:5 V/us子类别:Instrumentation Amplifier
供电电压上限:18 V标称供电电压 (Vsup):15 V
表面贴装:NO温度等级:MILITARY
端子面层:TIN LEAD端子形式:THROUGH-HOLE
端子节距:2.54 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:1标称电压增益:1000
宽度:7.62 mmBase Number Matches:1

AD624ACHIPS 数据手册

 浏览型号AD624ACHIPS的Datasheet PDF文件第9页浏览型号AD624ACHIPS的Datasheet PDF文件第10页浏览型号AD624ACHIPS的Datasheet PDF文件第11页浏览型号AD624ACHIPS的Datasheet PDF文件第12页浏览型号AD624ACHIPS的Datasheet PDF文件第13页浏览型号AD624ACHIPS的Datasheet PDF文件第15页 
AD624  
ERROR BUDGET ANALYSIS  
+V  
S
To illustrate how instrumentation amplifier specifications are  
applied, we will now examine a typical case where an AD624 is  
required to amplify the output of an unbalanced transducer.  
Figure 47 shows a differential transducer, unbalanced by 5 ,  
supplying a 0 to 20 mV signal to an AD624C. The output of the  
IA feeds a 14-bit A to D converter with a 0 to 2 volt input volt-  
age range. The operating temperature range is –25°C to +85°C.  
Therefore, the largest change in temperature T within the  
operating range is from ambient to +85°C (85°C – 25°C =  
60°C.)  
+10V  
10k⍀  
RG  
1
350⍀  
350⍀  
350⍀  
350⍀  
14-BIT  
ADC  
0 TO 2V  
F.S.  
G = 100  
AD624C  
RG  
2
–V  
S
In many applications, differential linearity and resolution are of  
prime importance. This would be so in cases where the absolute  
value of a variable is less important than changes in value. In  
these applications, only the irreducible errors (20 ppm =  
0.002%) are significant. Furthermore, if a system has an intelli-  
gent processor monitoring the A to D output, the addition of an  
autogain/autozero cycle will remove all reducible errors and may  
eliminate the requirement for initial calibration. This will also  
reduce errors to 0.002%.  
Figure 47. Typical Bridge Application  
Table II. Error Budget Analysis of AD624CD in Bridge Application  
Effect on  
Absolute  
Accuracy  
Effect on  
Absolute  
Accuracy  
Effect  
on  
AD624C  
Error Source  
Specifications Calculation  
at TA = +25؇C at TA = +85؇C Resolution  
Gain Error  
Gain Instability  
Gain Nonlinearity  
Input Offset Voltage  
Input Offset Voltage Drift  
±0.1%  
10 ppm  
±0.001%  
±25 µV, RTI  
±0.25 µV/°C  
±0.1% = 1000 ppm  
(10 ppm/°C) (60°C) = 600 ppm  
±0.001% = 10 ppm  
±25 µV/20 mV = ±1250 ppm  
(±0.25 µV/°C) (60°C)= 15 µV  
15 µV/20 mV = 750 ppm  
±2.0 mV/20 mV = 1000 ppm  
(±10 µV/°C) (60°C) = 600 µV  
600 µV/20 mV = 300 ppm  
(±15 nA)(5 ) = 0.075 µV  
0.075 µV/20mV = 3.75 ppm  
(±10 nA)(5 ) = 0.050 µV  
0.050 µV/20 mV = 2.5 ppm  
(10 nA) (175 ) = 1.75 µV  
1.75 µV/20 mV = 87.5 ppm  
(100 pA/°C) (175 ) (60°C) = 1 µV  
1 µV/20 mV = 50 ppm  
1000 ppm  
_
1000 ppm  
600 ppm  
10 ppm  
1250 ppm  
1250 ppm  
750 ppm  
1000 ppm  
Output Offset Voltage1  
±2.0 mV  
1000 ppm  
Output Offset Voltage Drift1 ±10 µV/°C  
300 ppm  
3.75 ppm  
2.5 ppm  
87.5 ppm  
50 ppm  
Bias Current–Source  
Imbalance Error  
Offset Current–Source  
Imbalance Error  
Offset Current–Source  
Resistance Error  
Offset Current–Source  
Resistance–Drift  
Common-Mode Rejection  
5 V dc  
±15 nA  
3.75 ppm  
2.5 ppm  
87.5 ppm  
±10 nA  
±10 nA  
±100 pA/°C  
115 dB  
115 dB = 1.8 ppm × 5 V = 9 µV  
9 µV/20 mV = 444 ppm  
450 ppm  
450 ppm  
Noise, RTI  
(0.1 Hz–10 Hz)  
0.22 µV p-p  
0.22 µV p-p/20 mV = 10 ppm  
_
10 ppm  
20 ppm  
Total Error  
3793.75 ppm  
5493.75 ppm  
NOTE  
1Output offset voltage and output offset voltage drift are given as RTI figures.  
For a comprehensive study of instrumentation amplifier design  
and applications, refer to the Instrumentation Amplifier Application  
Guide, available free from Analog Devices.  
REV. C  
–14–  

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