Flicker Noise Formulations in Compact Models

Autor: Colin C. McAndrew, Kiran K. Gullapalli, Kenneth S. Kundert, Geoffrey Coram
Rok vydání: 2020
Předmět:
Zdroj: IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems. 39:2812-2821
ISSN: 1937-4151
0278-0070
DOI: 10.1109/tcad.2020.2966444
Popis: This article shows how to properly define modulated flicker noise in Verilog-A compact models, and how a simulator should handle flicker noise for periodic and transient analyses. By considering flicker noise in a simple linear resistor driven by a sinusoidal source, we demonstrate that the absolute value formulation used in most existing Verilog-A flicker noise models is incorrect when the bias applied to the resistor changes sign. Our new method for definition overcomes this problem, in the resistor as well as more sophisticated devices. The generalization of our approach should be adopted for flicker noise, replacing the formulation in existing Verilog-A device models, and it should be used in all new models. Since Verilog-A is the de facto standard language for compact modeling, it is critical that model developers use the correct formulation.
Databáze: OpenAIRE