IEICE Electronics Express
Online ISSN : 1349-2543
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Low-voltage current-mode integrator for channel selection filter
Byoungwook KimDaeik Kim
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2014 Volume 11 Issue 1 Pages 20130845

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Abstract

A low-voltage current-mode integrator is presented for a continuous-time baseband channel selection filter of wireless communication systems. Fully-balanced current-mirror structure with additional cascode transistors operated in linear region enables low-voltage and low-power dissipation properties as well as voltage-controllable cut-off frequencies over a broad frequency range. A channel selection filter using the proposed integrator for three different communication standards with direct conversion receiver is implemented for a design example. Experimental results show that the implemented channel selection filter achieves design specification and outperforms other conventional filters.

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© 2014 by The Institute of Electronics, Information and Communication Engineers
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