Analysis Time, Accuracy And Memory Requirement Tradeoffs In Spice2

SPICE2 has proven to be an effective electronic circuit simulation program. Nonetheless, needs exist for faster computational performance and the ability to simulate economically larger circuits, especially large MOS circuits. Tradeoffs are necessary between accuracy and memory with circuit size and between accuracy and computational speed. For a bench mark example of a binary-to-octal decoder, the above aspects are illustrated. In addition, computational time that is required for different levels of device models is illustrated together with the savings achieved using a device bypass scheme and table lookup models.