Corrected and accurate Verilog-A for linear dopant drift model of memristors

There is an urgent need to develop accurate memristor circuit models for use in future large designs. Several Verilog-A and SPICE models have been presented which vary in their accuracy and simulation speed. This paper corrects a previous Verilog-A model and enhances the accuracy of another one. The results show that our proposal is stable over long simulation time, correctly predicts the behavior of circuits, provides a better accuracy, and is as fast as previous models. These results make our model the best choice for large memory or logic circuits designs using memristors.