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Title: Ultra-low-voltage 20-GHz frequency dividers using transformer feedback in 0.18-μm CMOS process
Authors: Zheng, Hui
Luong, Howard Cam
Keywords: CMOS analogue integrated circuits
Frequency dividers
Low-power electronics
Transformer feedback
Ultra-low-voltage frequency divider
Issue Date: 2008
Citation: IEEE journal of solid-state circuits, v. 43, no. 10, October 2008, p. 2293-2302
Abstract: This paper presents the design and analysis of ultralow-voltage (ULV) high-frequency dividers using transformer feedback. Specifically, a differential-input differential-output injection-locked (IL) divider topology with transformer feedback and a wideband transformer-coupled (TC) divider with quadrature outputs are demonstrated, both of which can operate well at supply voltages as low as the device’s threshold voltages. Fabricated in a standard 0.18-μm CMOS process, the ULV-IL divider measures an input frequency range from 16.1 GHz to 20 GHz while consuming a total power from 2.75 mW to 4.35 mW at 0.5 V supply, and the TC-divider measures an input frequency range of 27.8% from 15.1 GHz to 20 GHz with IQ sideband rejection of ─31 dBc while consuming power from 11.4 mW to 13.6 mW at 0.6 V supply.
Rights: © 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
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