温度测量ADI

简介：

问：请问单片机温度测量现在采用哪种方式最好？
答： The most popular one is, ADuC834/36 which used on the RTD sensor. Those two chips integrated the excited current sources. Please visit our web site for more detail information: www.analog.com

问：是否有这样的IC:SPI接口,只需要内置数字温度传感器，精度+-2度，成本在$0.4以下
答： AD7314 is the lower cost with the SPI interface.

问：TMP06/05能监视多少路的温度?
答： TMP05/06 can only measure one way temperature.

问：What"s the use of the daisy chain mode of TMP05/6?
答： Please refer to page 13 of the presentation. When in this mode, more than one TMP05/6 can be used in the chain, but with the same interface to the MCU.

问：产品的精度似乎都很低，而分辨率很高，在对温度绝对值要求的场合，怎么应用？
答： The accuracy of the sensors limited the system accuracy. That means if the accuracy you request is higher than what chips can offer, you can"t reach that by IC solution. You can give your special request on specs by calling 800-810-1742

问：请问:我希望用7516构成一个多点测温网络,通MCU读取温度,应如何组网?
答： The most sensors that ADT7516 can connect is 4. You can connect four sensors to the ADT7516, And use enough ADT7516 in the system and connect them to the MCU via SPI bus. That should be OK.

问：有没有快速的温度传感器？
答： It depends on how fast you request. Basically diode is fastest reponse solution (ADT7461, ADT751x/731x can be used). If you need very high response of the sensors and conversation rate, you need to find external fast sensor, and use higher speed ADC (maybe

问：请问对于很大的温度测量范围，比如上千度，集成器件是否无能为力？
答： Yes. But you can you thermal-coupler that can reach over 2000 degree C. AD594 and AD595 can use here as the thermal-coupler signal condition.

问：请问ADI温度测量IC的封装尺寸和价格水平是什么样的？
答： It will be decided by the parts you are considering. We have parts in SOT package, it is very small. And our price is competitive.

问：ADT75XX有没有温度记录功能?如何外接存储器来记录所测量的温度?存储器容量要多大?
答： ADT75XX contains the registers that are used to store the temperature measurement result. You can read them from the registers by SPI or I2C interface and then record them. I think the RAM volume is decided by how many temperature values you wants to recor