IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Online ISSN : 1745-1337
Print ISSN : 0916-8508
Regular Section
A Low-Power and High-Linear Current to Time Converter for Wireless Sensor Networks
Ryota SAKAMOTOKoichi TANNOHiroki TAMURA
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2012 Volume E95.A Issue 6 Pages 1088-1090

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Abstract

In this letter, we describe a low power current to time converter for wireless sensor networks. The proposed circuit has some advantages of high linearity and wide measurement range. From the evaluation using HSPICE with 0.18µm CMOS device parameters, the output differential error for the input current variation is approximately 0.1µs/nA under the condition that the current is varied from 100nA to 500nA. The idle power consumption is approximately zero.

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© 2012 The Institute of Electronics, Information and Communication Engineers
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