May 26, 2018
Mixed-signal circuit simulator derived from Spice and Cider
Ngspice is a mixed-level/mixed-signal circuit simulator. Its code is based on three open source software packages Spice3f5, Cider1b1 and Xspice. It is the open source successor of these venerable packages. Many, many modifications, bug fixes and improvements have been added to the code, yielding a stable and reliable simulator.