Characterization and Modeling of Harmonics in SOI Poly-Silicon Resistors

Abstract

This paper presents the various causes of nonlinearities in poly-Silicon resistor: The study in this paper confirms that the most dominant source of 3rd Harmonics in poly-resistors is self-heating. We have also briefly discussed the various self-heating models available and proposed an updated model based on Rth -Cth thermal network. Finally the model to hardware correlation of the 3rd harmonic output power is shown, which highlights that the proposed self-heating model provides the best matching with the hardware results, when compared to the other available models, without compromising the accuracy of other parts of the model.