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Proceedings Paper

Power on reset circuit of 915MHz RFID tags
Author(s): Zhaomin Wang; Daolin Cai; Zhongqian Fu; Houpeng Chen; Zhitang Song
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Paper Abstract

Power on reset circuit provides a reset signal for the entire system into normal working condition. When power reaches normal operating voltage and remains stable, power on reset circuit provides one rectangular pulse signal which has a steep edge for the digital baseband part of the tag. After reset, POR circuit is isolated with the follow-up circuits, having good stability. In this paper, we designed two new static ultra-low power consumption power-on reset circuits. The first circuit uses Schmitt triggers for signal threshold detection and a certain delay. The peak current of the first circuit is 31uA, with a static current being 33 pA. The second circuit is based on a clamp circuit and PMOS gate cross-coupled circuit which greatly reduces the static current (190 pA). And the peak current of the second circuit is 21 μA.

Paper Details

Date Published: 24 January 2013
PDF: 7 pages
Proc. SPIE 8782, 2012 International Workshop on Information Storage and Ninth International Symposium on Optical Storage, 878210 (24 January 2013); doi: 10.1117/12.2016535
Show Author Affiliations
Zhaomin Wang, Univ. of Science and Technology of China (China)
Shanghai Institute of Microsystem and Information Technology (China)
Daolin Cai, Shanghai Institute of Microsystem and Information Technology (China)
Univ. of Electronic Science and Technology of China (China)
Zhongqian Fu, Univ. of Science and Technology of China (China)
Houpeng Chen, Shanghai Institute of Microsystem and Information Technology (China)
Zhitang Song, Shanghai Institute of Microsystem and Information Technology (China)


Published in SPIE Proceedings Vol. 8782:
2012 International Workshop on Information Storage and Ninth International Symposium on Optical Storage
Fuxi Gan; Zhitang Song, Editor(s)

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