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AD627ARZ-REEL PDF预览

AD627ARZ-REEL

更新时间: 2024-02-18 15:49:07
品牌 Logo 应用领域
亚德诺 - ADI 放大器光电二极管
页数 文件大小 规格书
25页 1129K
描述
INSTRUMENTATION AMPLIFIER, 200uV OFFSET-MAX, 0.08MHz BAND WIDTH, PDSO8, MS-012AA, SOIC-8

AD627ARZ-REEL 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:SOP,针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.33.00.01风险等级:5.11
放大器类型:INSTRUMENTATION AMPLIFIER最大平均偏置电流 (IIB):0.01 µA
标称带宽 (3dB):0.08 MHz最小共模抑制比:77 dB
最大输入失调电流 (IIO):0.001 µA最大输入失调电压:200 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):-5 V
最大非线性:0.001%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封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.75 mm
标称压摆率:0.05 V/us子类别:Instrumentation Amplifier
供电电压上限:18 V标称供电电压 (Vsup):5 V
表面贴装:YES温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)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标称电压增益:10
宽度:3.9 mmBase Number Matches:1

AD627ARZ-REEL 数据手册

 浏览型号AD627ARZ-REEL的Datasheet PDF文件第16页浏览型号AD627ARZ-REEL的Datasheet PDF文件第17页浏览型号AD627ARZ-REEL的Datasheet PDF文件第18页浏览型号AD627ARZ-REEL的Datasheet PDF文件第20页浏览型号AD627ARZ-REEL的Datasheet PDF文件第21页浏览型号AD627ARZ-REEL的Datasheet PDF文件第22页 
AD627  
The errors associated with each implementation (see Table 9ꢀ  
show the integrated in-amp to be more precise at both ambient  
and overtemperature. Note that the discrete implementation is  
more expensive, primarily due to the relatively high cost of the  
low drift precision resistor network.  
MAKE vs. BUY: A TYPICAL APPLICATION ERROR  
BUDGET  
The example in Figure 4± serves as a good comparison between  
the errors associated with an integrated and a discrete in-amp  
implementation. A ±±00 mV signal from a resistive bridge  
(common-mode voltage = 2.5 Vꢀ is amplified. This example  
compares the resulting errors from a discrete two-op-amp  
instrumentation amplifier and the AD627. The discrete  
implementation uses a four-resistor precision network  
(±% match, 50 ppm/°C trackingꢀ.  
The input offset current of the discrete instrumentation amplifier  
implementation is the difference in the bias currents of the two-  
op amplifiers, not the offset currents of the individual op amps.  
In addition, although the values of the resistor network are chosen  
so that the inverting and noninverting inputs of each op amp  
see the same impedance (about 350 Ωꢀ, the offset current of  
each op amp adds another error that must be characterized.  
+5V  
+5V  
+5V  
350Ω  
350Ω  
350Ω  
350Ω  
LT10781SB  
R
G
V
1/2  
OUT  
40.2kΩ  
1%  
+10ppm/°C  
LT10781SB  
AD627A  
V
OUT  
±100mV  
1/2  
+2.5V  
3.15k*  
350*  
350*  
3.15k*  
+2.5V  
AD627A GAIN = 9.98 (5+(200k/R ))  
HOMEBREW IN-AMP, G = +10  
*1% RESISTOR MATCH, 50ppm/°C TRACKING  
G
Figure 41. Make vs. Buy  
Table 9. Make vs. Buy Error Budget  
Total Error  
AD627  
(ppm)  
Total Error  
Homebrew  
(ppm)  
Error Source  
AD627 Circuit Calculation  
Homebrew Circuit Calculation  
ABSOLUTE ACCURACY at TA = 25°C  
Total RTI Offset Voltage, mV  
Input Offset Current, nA  
Internal Offset Current  
(Homebrew Only)  
(250 ꢀV + (1000 ꢀV/10))/100 mV  
1 nA × 350 Ω/100 mV  
Not applicable  
(180 ꢀV × 2)/100 mV  
20 nA × 350 Ω/100 mV  
0.7 nA × 350 Ω/100 mV  
3,500  
3.5  
3,600  
70  
2.45  
CMRR, dB  
Gain  
(1% match × 2.5 V)/10/100 mV  
1% match  
3,531  
25,000  
10,000  
38,672  
77 dB141 ppm × 2.5 V/100 mV  
0.35% + 0.1%  
13,500  
20,535  
Total Absolute Error  
DRIFT TO 85°C  
Gain Drift, ppm/°C  
Total RTI Offset Voltage, mV/°C (3.0 ꢀV/°C + (10 ꢀV/°C/10)) ×  
60°C/100 mV  
(−75 + 10) ppm/°C × 60°C  
50 ppm/°C × 60°C  
(2 × 3.5 ꢀV/°C × 60°C)/100 mV  
3,900  
2,600  
3,000  
4,200  
Input Offset Current, pA/°C  
(16 pA/°C × 350 Ω × 60°C)/100 mV (33 pA/°C × 350 Ω × 60°C)/100 mV  
3.5  
7
Total Drift Error  
Grand Total Error  
6,504  
27,039  
7,207  
45,879  
Rev. D | Page 18 of 24  
 
 
 

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