Integrated Spiral Inductors

No. turns, n =    Turn spacing, s = µm
Turn width, w = µm Outer diameter, dout = µm

Modified Wheeler nH nH nH
Current Sheet nH nH nH
Monomial Fit nH nH nH

S.S. Mohan, M. Hershenson, S.P. Boyd and T.H. Lee, "Simple Accurate Expressions for Planar Spiral Inductances, "IEEE Journal of Solid-State Circuits, Oct. 1999, pp. 1419-24.