摘要：介绍了集成温度传感器AD590，给出了AD590测量热力学温度、摄氏温度、两点温度差、多点最低温度、多点平均温度的具体电路，并以节能型温、湿度控制系统为例介绍了利用AD590测两点温差电路的应用。

关键词： AD590；集成温度传感器；温度差；

中图分类号：TP368 TP212.11文献标识码：A 文章编号：：1006-883X（2003）03-0035-03

-Abstract: This paper presents an integrated temperature sensor AD590, gives the measurement of thermodynamic AD590 temperature, Celsius temperature, two temperature difference, the lowest multi-point temperature, multi-point average temperature of the specific circuit, and energy-efficient temperature and humidity control system as an example measured using two AD590 temperature circuit applications. Keywords: AD590　integrated temperature sensor　temperature difference　CLC number: TP368 TP212.11 Document code: A Article ID: :1006-883X (2003) 03-0035-03