Modeling and Design of high-speed FM-AFM driver electronics using Cadence Virtuoso and Simulink

摘要

We present an architecture and modeling approach for cantilever driver electronics required in FM-AFM experiments. To verify the topology, our overall system is modeled and implemented on top level in Simulink with the most important building blocks realized hierarchically on circuit level in Cadence Virtuoso. The resulting heterogeneous model is simulated using Spectre-Simulink cosimulations. The system performance is evaluated and it is shown that it is suitable to produce a stable closed-loop cantilever drive signal, whose frequency can be adjusted by an external reference.