IEICE Electronics Express
Online ISSN : 1349-2543
LETTER
A 0.23 mW self-biased current-reuse CMOS LC-VCO based on novel interposed network
Deng XiaoyingLin XinZhu Mingcheng
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JOURNALS FREE ACCESS

2017 Volume 14 Issue 20 Pages 20170838

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Abstract

Based on the self-biased current-reuse complementary structure and interposed network, a low power LC voltage controlled oscillator (VCO) is presented, which can simultaneously achieve ultra-low power consumption and low phase noise. Firstly, thanks to the self-biased voltage-diving technique, the LC-VCO consumes ultra-low power consumption. Secondly, the novel interposed network can greatly improve the VCO’s phase noise performance. The proposed VCO is implemented in SMIC 180 nm CMOS process with a small area of 0.15 mm2, which exhibits phase noise of −118.3 dBc/Hz at 1 MHz offset from the 2.5 GHz carrier at 0.8 V supply voltage while the power dissipation is only 0.23 mW.

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© 2017 by The Institute of Electronics, Information and Communication Engineers
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