cadence diva
Hi,
Normally Spice simulators support R reduction, the algorithm constructed in such way that u won't loose much accuracy
so here is the flow
1. do simulation without R reduction, keep this results as golden ref.
2. do simulaiton with R reduction, compare it with golden calc. difference.
3. increase reduction and do simulation, compare it again.
iterate until u get better tradeoff between performance & accuracy
Use u r settings as reference for future designs.
try to keep u r results with reduction under 10% difference with golden ref.
By th way which tool r u using?
Thanks,