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A passive UHF RFID tag chip with a dual-resolution temperature sensor in a0.18μm standard CMOS process
Feng, Peng; Zhang, Qi; Wu, Nanjian; Wu, N.(nanjian@semi.ac.cn)
2011
Source PublicationJournal of Semiconductors
ISSN16744926
Volume32Issue:11Pages:115013
AbstractThis paper presents a passive EPC Gen-2 UHF RFID tag chip with a dual-resolution temperature sensor. The chip tag integrates a temperature sensor, an RF/analog front-end circuit, an NVM memory and a digital baseband in a standard CMOS process. The sensor with a low power sigma- delta(ΣΔ) ADC is designed to operate in low and high resolution modes. It can not only achieve the target accuracy but also reduce the power consumption and the sensing time. A CMOS-only RF rectifier and a single-poly non-volatile memory(NVM) are designed to realize a low cost tag chip. The192-bit-NVM tag chip with an area of1 mm2 is implemented in a0.18-μm standard CMOS process. The sensitivity of the tag is-10.7 dBm/-8.4 dBm when the sensor is disabled/enabled. It achieves a maximum reading/sensing distance of4 m/3.1 m at2 W EIRP. The inaccuracy of the sensor is-0.6°C/0.5°C(-1.0°C/1.2°C) in the operating range from5 to15°C in high resolution mode(-30 to50°C in low resolution mode). The resolution of the sensor achieves0.02°C(0.18°C) in high(low) resolution mode.?2011 Chinese Institute of Electronics.
metadata_83半导体超晶格国家重点实验室
KeywordCmos Integrated Circuits Radio Frequency Identification(Rfid) Radio Navigation Standards
Subject Area半导体物理
Indexed ByEI
Date Available2012-06-14
Document Type期刊论文
Identifierhttp://ir.semi.ac.cn/handle/172111/23054
Collection半导体超晶格国家重点实验室
Corresponding AuthorWu, N.(nanjian@semi.ac.cn)
Recommended Citation
GB/T 7714
Feng, Peng,Zhang, Qi,Wu, Nanjian,et al. A passive UHF RFID tag chip with a dual-resolution temperature sensor in a0.18μm standard CMOS process[J]. Journal of Semiconductors,2011,32(11):115013.
APA Feng, Peng,Zhang, Qi,Wu, Nanjian,&Wu, N..(2011).A passive UHF RFID tag chip with a dual-resolution temperature sensor in a0.18μm standard CMOS process.Journal of Semiconductors,32(11),115013.
MLA Feng, Peng,et al."A passive UHF RFID tag chip with a dual-resolution temperature sensor in a0.18μm standard CMOS process".Journal of Semiconductors 32.11(2011):115013.
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