Title :
Frequency-independent equivalent-circuit model for on-chip spiral inductors
Author :
Cao, Yu ; Groves, Robert A. ; Huang, Xuejue ; Zamdmer, Noah D. ; Plouchart, Jean-Olivier ; Wachnik, Richard A. ; King, Tsu-Jae ; Hu, Chenming
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of California, Berkeley, CA, USA
fDate :
3/1/2003 12:00:00 AM
Abstract :
A wide-band physical and scalable 2-Π equivalent circuit model for on-chip spiral inductors is developed. Based on physical derivation and circuit theory, closed-form formulas are generated to calculate the RLC circuit elements directly from the inductor layout. The 2-Π model accurately captures R(f) and L(f) characteristics beyond the self-resonant frequency. Using frequency-independent RLC elements, this new model is fully compatible with both ac and transient analysis. Verification with measurement data from a SiGe process demonstrates accurate performance prediction and excellent scalability for a wide range of inductor configurations.
Keywords :
equivalent circuits; inductors; 2-Π equivalent circuit model; AC analysis; SiGe; SiGe process; frequency-independent RLC elements; on-chip spiral inductor; self-resonant frequency; transient analysis; Circuit theory; Equivalent circuits; Frequency; Germanium silicon alloys; Inductors; RLC circuits; Silicon germanium; Spirals; Transient analysis; Wideband;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2002.808285
