Ngspice

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Ngspice is a mixed-level/mixed-signal circuit simulator based on three open source software packages: Spice3f5, Cider1b1 and Xspice:

• SPICE is the most famous and used electronic circuit simulator.
• Cider is a mixed-level simulator that already includes SPICE 3f5 and adds a device simulator to it: DSIM. Cider couples the circuit level simulator to the device simulator to provide greater simulation accuracy (at the expense of greater simulation time). Critical devices can be described with technology parameters (numerical models) and non critical ones with the original SPICE's compact models.
• Xspice is an extension to SPICE 3 that provides code modeling support and simulation of digital components through an embedded event driven algorithm.

(derived from Ngspice FAQ)

Licensed under BSD license.

[edit] External links

• Ngspice homepage