基于热敏电阻传感器的精确人体温度测量

2016 IEEE 19th International Symposium on Design and Diagnostics of Electronic Circuits & Systems (DDECS) Pub Date : 2016-04-20 DOI:10.1109/DDECS.2016.7482451

Paweł Narczyk, Krzysztof Siwiec, W. Pleskacz

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引用次数: 25

摘要

提出了一种模拟前端和一种新的温度校准方法，用于人体温度的精确测量。所讨论的AFE由一个电流基准、一个精密电流源、一个可编程增益放大器、一个与绝对温度成比例的电压源和片上温度校准电阻组成。在IC工作温度为-40℃~ +125℃的情况下，人体温度的测量范围为+25℃~ +45℃，精度为0.1℃。模拟前端功耗不超过180uw，采用UMC CMOS 130nm工艺设计。

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Precision human body temperature measurement based on thermistor sensor

An analog front-end, with a new temperature calibration method, for an accurate temperature measurement of a human body has been presented. The discussed AFE consists of a current reference, a precision current source, a programmable gain amplifier, a voltage source proportional to absolute temperature and on-chip temperature calibration resistor. Human body temperature can be measured in the range from +25 °C to +45 °C at the operating temperature of an IC in the range from -40 °C to +125 °C with 0.1 °C precision. The presented analog front-end consumes no more than 180 uW and was designed in UMC CMOS 130 nm technology.

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2016 IEEE 19th International Symposium on Design and Diagnostics of Electronic Circuits & Systems (DDECS)

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