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1-V 365-- 2.5-MHz Channel Selection Filter for 3G Wireless Receiver in 55-nm CMOS | IEEE Journals & Magazine | IEEE Xplore

1-V 365- \mu{\rm W} 2.5-MHz Channel Selection Filter for 3G Wireless Receiver in 55-nm CMOS


Abstract:

This paper presents a novel 1-V 2.5-MHz continuous-time filter for 3G wireless application, fabricated using a standard 55-nm CMOS process. The four-pole filter topology ...Show More

Abstract:

This paper presents a novel 1-V 2.5-MHz continuous-time filter for 3G wireless application, fabricated using a standard 55-nm CMOS process. The four-pole filter topology includes a single pole-tracking Operational Amplifier (OPAMP) structure to achieve low in-band noise levels, high out-of-band linearity, and reduced power consumption. An automatic frequency tuning circuit is developed to compensate for process and environmental variations. The proposed filter achieves inband noise of 18-μV rms and out-of-band IIP3 of 33 dBm within 365 μW. The out-of-band spurious-free dynamic range is measured at 76.7 dB, resulting in a figure-of-merit of 1.24 × 10-4 fJ.
Page(s): 1164 - 1169
Date of Publication: 07 June 2013

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