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A novel rail-to-rail differential voltage-to-frequency converter for portable sensing systems

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4 Author(s)
Azcona, C. ; Group of Electron. Design, Univ. of Zaragoza, Zaragoza, Spain ; Calvo, B. ; Celma, S. ; Medrano, N.

This paper presents a new high performance 1.2 V - 0.18 μm CMOS differential voltage-to-frequency converter (dVFC). The proposed dVFC works properly over the whole differential common mode input providing an output frequency range of 0.0 - 0.9 MHz with 0.015% linearity error for a -40 to 120°C temperature range and a 30% supply voltage variation. Power consumption is below 65 μW, which makes it suitable to be used in portable applications.

Published in:

Circuits and Systems (ISCAS), 2012 IEEE International Symposium on

Date of Conference:

20-23 May 2012