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参数资料
| 型号： | AD8497CRMZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 11/16页 |
| 文件大小： | 0K |
| 描述： | IC THERMOCOUPLE A W/COMP 8MSOP |
| 标准包装： | 1,000 |
| 类型： | 热电偶放大器 |
| 输入类型： | 差分 |
| 输出类型： | 模拟 |
| 电流 - 电源： | 250µA |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 带卷 (TR) |
AD8494/AD8495/AD8496/AD8497
Rev. C | Page 4 of 16
A Grade
C Grade
Parameter
Test Conditions/Comments
Min
Typ
Max
Min
Typ
Max
Unit
TEMPERATURE RANGE (TA)
Specified Performance
AD8494/AD8495
0
50
0
50
°C
AD8496/AD8497
25
100
25
100
°C
Operational
40
+125
40
+125
°C
1 Ambient temperature rejection specifies the change in the output measurement (in °C) for a given change in temperature of the cold junction. For the AD8494 and
AD8495, ambient temperature rejection is defined as the slope of the line connecting errors calculated at 0°C and 50°C ambient temperature. For the AD8496 and
AD8497, ambient temperature rejection is defined as the slope of the line connecting errors calculated at 25°C and 100°C ambient temperature.
2 Error does not include thermocouple gain error or thermocouple nonlinearity.
3 With a 100 kΩ load, measurement junction temperatures beyond approximately 880°C for the AD8494 and AD8496 and beyond approximately 960°C for the AD8495
and AD8497 require supply voltages larger than 5 V or a negative voltage applied to the reference pin. Measurement junction temperatures below 5°C require either a
positive offset voltage applied to the reference pin or a negative supply.
4 Input stage uses PNP transistors, so bias current always flows out of the part.
5 Large output currents can increase the internal temperature rise of the part and contribute to cold junction compensation (CJC) error.
6 Unbalanced supplies can also be used. Care should be taken that the common-mode voltage of the thermocouple stays within the input voltage range of the part.
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