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A 433-MHz Rail-to-Rail Voltage Amplifier with Carrier Sensing Function for Wireless Sensor Networks

Takashi TAKEUCHI, Shinji MIKAMI, Hyeokjong LEE, Hiroshi KAWAGUCHI, Chikara OHTA, Masahiko YOSHIMOTO

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Summary :

In this paper we propose a novel functional amplifier suitable for low-power wireless receivers in a wireless sensor network. This amplifier can change input threshold level as carrier sensing level, since it has a minimum input amplitude to be amplified. A simple rail-to-rail output is suitable for a subsequent digital interface. The target frequency is 433 MHz, and the maximum voltage gain is 11 dB. The standby power is 39.5 nW, and the active power is 352 µW. The chip area is 8224 µm2.

Publication
IEICE TRANSACTIONS on Electronics Vol.E92-C No.6 pp.815-821
Publication Date
2009/06/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E92.C.815
Type of Manuscript
Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
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