Abstract
This chapter details models for resistors. Although resistors may seem to be simple devices, in practice the effects of velocity saturation, depletion pinching, and self-heating cause the dc I(V) characteristics to be nonlinear, and for this nonlinearity to vary with geometry and temperature. Even slight nonlinearities in resistors can contribute significantly to distortion and harmonics in highly linear analog and RF circuits, so accurate modeling of the nonlinearities is needed. Parasitics and self-heating also cause the ac behavior of resistors to vary with frequency. Basics of resistor modeling are reviewed, and a physically based 3-terminal resistor model is derived, and shown to be applicable to both poly resistors and diffused resistors (which are really JFETs). The model includes geometry and temperature dependence, and also has statistical variability, including mismatch, built in. Details of some useful parameter extraction procedures are provided.
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McAndrew, C.C. (2010). Integrated Resistor Modeling. In: Gildenblat, G. (eds) Compact Modeling. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-8614-3_9
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DOI: https://doi.org/10.1007/978-90-481-8614-3_9
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