IEICE Transactions on Electronics
Online ISSN : 1745-1353
Print ISSN : 0916-8524
Special Section on Analog Circuits and Related SoC Integration Technologies
A 433-MHz Rail-to-Rail Voltage Amplifier with Carrier Sensing Function for Wireless Sensor Networks
Takashi TAKEUCHIShinji MIKAMIHyeokjong LEEHiroshi KAWAGUCHIChikara OHTAMasahiko YOSHIMOTO
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2009 Volume E92.C Issue 6 Pages 815-821

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Abstract

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 433MHz, and the maximum voltage gain is 11dB. The standby power is 39.5nW, and the active power is 352µW. The chip area is 82 × 24µm2.

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© 2009 The Institute of Electronics, Information and Communication Engineers
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