Current-mode CMOS Active Inductor with Applications to Low-Voltage Oscillators

M. Ma, Z. Li, Z. Yao

Abstract


This paper investigates a current mode active inductor. In the proposed active inductor, three current mirrors have been connected to each other to realize the negative feedback. This active conductor has a two layer transistor structure. A 4.257 GHz, 1.2-V power supply non-inductive LC negative resistor oscillator, base on two of the proposed active inductors, is demonstrated.


Keywords


active inductor; current mirror; low-voltage

Full Text:

PDF

References


M. Saito, M. Ono, R. Fujimoto, H. Tanimoto, N. Ito, T. Yoshitomi, T. Ohguro, H. S. Momose, H. Iwai, “0.15-μm RF CMOS technology compatible with logic CMOS for low-voltage operation”, IEEE Transactions on Electron Devices, Vol. 45, No. 3, pp. 737 –742, 1998

D. Wang, J. Ou, X. Wang; “RF Design Challenges at 90nm RFCMOS Technology Under Low Voltage Applications”, ICSICT Ì06. 8th International Conference on Solid-State and Integrated Circuit Technology, pp. 1522 –1525, Shanghai, 2006

L. Lu, H. Hsieh, Y. Liao, “A wide tuning-range CMOS VCO with a differential tunable active inductor”, IEEE Transactions on Microwave Theory and Techniques, Vol. 54, No. 9, pp. 3462–3468, 2006

A. Tang, F. Yuan, E. Law, “A new CMOS active transformer QPSK modulator with optimal bandwidth control”, IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 55, No. 1, pp. 11–15, 2008

A. Tang, F. Yuan, E. Law, “Class AB CMOS active transformers Voltage-Controlled Oscillators”, ISSSE '07, International Symposium on Signals, Systems and Electronics, pp. 501–504, Montreal, 2007

A. Tang, F. Yuan, E. Law, “Low-noise CMOS active transformer voltage-controlled oscillators”, MWSCAS 50th Midwest Symposium on Circuits and Systems, pp. 1441–1444, Montreal, 2007

T. H. Lee, “The design of CMOS radio-frequency integrated circuits”, Cambridge University Press, 2003




eISSN: 1792-8036     pISSN: 2241-4487