Design of Ultra-Low-Voltage RF Frontends With Complementary Current-Reused Architectures

In this paper, ultra-low-voltage circuit techniques are presented for CMOS RF frontends. By employing a complementary current-reused architecture, the RF building blocks including a low-noise amplifier (LNA) and a single-balanced down-conversion mixer can operate at a reduced supply voltage with microwatt power consumption while maintaining reasonable circuit performance at multigigahertz frequencies. Based on the MOSFET model in moderate and weak inversion, theoretical analysis and design considerations of the proposed circuit techniques are described in detail. Using a standard 0.18-mum CMOS process, prototype frontend circuits are implemented at the 5-GHz frequency band for demonstration. From the measurement results, the fully integrated LNA exhibits a gain of 9.2 dB and a noise figure of 4.5 dB at 5 GHz, while the mixer has a conversion gain of 3.2 dB and an IIP3 of -8 dBm. Operated at a supply voltage of 0.6 V, the power consumptions of the LNA and the mixer are 900 and 792 muW, respectively.

[1]  M. Tiebout,et al.  A 0.6-V 1.6-mW transformer-based 2.5-GHz downconversion mixer with +5.4-dB gain and -2.8-dBm IIP3 in 0.13-/spl mu/m CMOS , 2005, IEEE Transactions on Microwave Theory and Techniques.

[2]  K. Vavelidis,et al.  Simple 'reconciliation' MOSFET model valid in all regions , 1995 .

[3]  Franco Maloberti,et al.  A 900 MHz, 0.9 V low-power CMOS downconversion mixer , 2001, Proceedings of the IEEE 2001 Custom Integrated Circuits Conference (Cat. No.01CH37169).

[4]  Mourad N. El-Gamal,et al.  Gain and frequency controllable sub-1 V 5.8 GHz CMOS LNA , 2002, 2002 IEEE International Symposium on Circuits and Systems. Proceedings (Cat. No.02CH37353).

[5]  Hervé Lapuyade,et al.  A 1-V 2GHz VLSI CMOS low noise amplifier , 2003, IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, 2003.

[6]  A.H.M. van Roermund,et al.  A low-voltage folded-switching mixer in 0.18-/spl mu/m CMOS , 2005, IEEE Journal of Solid-State Circuits.

[7]  Liang-Hung Lu,et al.  A High-Performance CMOS Voltage-Controlled Oscillator for Ultra-Low-Voltage Operations , 2007, IEEE Transactions on Microwave Theory and Techniques.

[8]  T. Yoshimasu,et al.  Internally matched, ultralow DC power consumption CMOS amplifier for L-band personal communications , 2004, IEEE Microwave and Wireless Components Letters.

[9]  G. Gonzalez.  Microwave Transistor Amplifiers: Analysis and Design , 1984 .

[10]  Jingxue Lu,et al.  Comments on "CMOS low-noise amplifier design optimization techniques" , 2006 .

[11]  Liang-Hung Lu,et al.  Ultra-low-voltage mixer and VCO in 0.18-/spl mu/m CMOS , 2005, 2005 IEEE Radio Frequency integrated Circuits (RFIC) Symposium - Digest of Papers.

[12]  David M. Binkley,et al.  Design-oriented characterization of CMOS over the continuum of inversion level and channel length , 2000, ICECS 2000. 7th IEEE International Conference on Electronics, Circuits and Systems (Cat. No.00EX445).

[13]  Y. Tsividis.  Operation and modeling of the MOS transistor , 1987 .

[14]  Sang-Gug Lee,et al.  CMOS low-noise amplifier design optimization techniques , 2004, IEEE Transactions on Microwave Theory and Techniques.

[15]  Liang-Hung Lu,et al.  A CMOS 5-GHz micro-power LNA , 2005, 2005 IEEE Radio Frequency integrated Circuits (RFIC) Symposium - Digest of Papers.

[16]  C.C. Enz,et al.  A low-power low-voltage transceiver architecture suitable for wireless distributed sensors network , 2000, 2000 IEEE International Symposium on Circuits and Systems. Emerging Technologies for the 21st Century. Proceedings (IEEE Cat No.00CH36353).

[17]  Calvin Plett,et al.  RF circuit implications of moderate inversion enhanced linear region in MOSFETs , 2004, IEEE Transactions on Circuits and Systems I: Regular Papers.

[18]  Arthur van Roermund,et al.  A low-voltage folded-switching mixer in 0.18-μm CMOS , 2005 .

[19]  Liang-Hung Lu,et al.  A 0.5-V 1.9-GHz low-power phase-locked loop in 0.18-μm CMOS , 2007, 2007 IEEE Symposium on VLSI Circuits.

[20]  P. Kinget,et al.  A 0.5 V 900 MHz CMOS Receiver Front End , 2006, 2006 Symposium on VLSI Circuits, 2006. Digest of Technical Papers..

[21]  Sang-Gug Lee,et al.  A CMOS 868/915 MHz direct conversion. ZigBee single-chip radio , 2005, IEEE Communications Magazine.

[22]  Ilku Nam,et al.  An experimental coin-sized radio for extremely low-power WPAN (IEEE 802.15.4) application at 2.4 GHz , 2003 .

[23]  P. Wambacq,et al.  Low-power 5 GHz LNA and VCO in 90 nm RF CMOS , 2004, 2004 Symposium on VLSI Circuits. Digest of Technical Papers (IEEE Cat. No.04CH37525).

[24]  Thomas H. Lee.  The Design of CMOS Radio-Frequency Integrated Circuits , 1998 .

[25]  P. Kinget,et al.  0.5-V analog circuit techniques and their application in OTA and filter design , 2005, IEEE Journal of Solid-State Circuits.