Nexxim is the ANSYS state-of-the-art circuit simulator for RF, analog, and mixed-signal designs. Nexxim combines transistor-level simulation accuracy, high execution speed, and robust capability to handle circuits with thousands of active and passive elements. Nexxim simulates in all three domains — DC, time, and frequency — from the same set of device models.

Nexxim Time Domain analyses include DC analysis, transient analysis, statistical eye analysis with VerifEye and QuickEye, and IBIS-AMI analysis. Support is available for HSPICE simulation when that system is installed. The focus of the time-domain solvers is on signal integrity issues.

Nexxim Frequency Domain analyses include harmonic balance, oscillator analysis, envelope analysis, time-varying noise analysis, and linear network analysis.