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	A high-accuracy temperature sensor with an inaccuracy of ��1C from -55C to 125C
	Chen, Jianguang ; Liu, Shaolong ; Cheng, Yuhua
	2010
英文摘要	A smart temperature sensor based on 0.35um ASMC CMOS process with an inaccuracy of ??1??C from -55??C to 125 ??C is presented. The sensor uses substrate vertical bipolar transistor to measure the temperature and errors resulting from nonidealities in the readout circuit are reduced to 0.1??C level by applying dynamic element matching (DEM) and chopping offset cancellation techniques. By using pseudo-random sequence, the mismatch of current mirrors can be reduced to smaller comparing with other methods. A voltage proportional to absolute temperature added to base-emitter voltage is used to compensate the process spread at one temperature with the trade off between inaccuracy and complexity. A digital output is realized by an on-chip sigma-delta ADC which is compatible with digital bus interface. ?2010 IEEE.; EI; 0
语种	英语
DOI标识	10.1109/ICSICT.2010.5667573
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/295494]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Chen, Jianguang,Liu, Shaolong,Cheng, Yuhua. A high-accuracy temperature sensor with an inaccuracy of ��1C from -55C to 125C. 2010-01-01.

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