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List some probably if nonconvergence...
1.Be sure to check your model parameter units.* L4 E" D/ Y8 L5 f
2.Use MOS ACM=1,ACM=2,or ACM=3 source and drain diode calaulation to automatically generate parasitics.
" o' q" N& E# H6 B& I/ n1 A- x3.Check if you MOS models had subshreshold parameter set? (NFS=1e11 for HSPICE Level 1, 2, 3 and N0=1 for HSPICE BSIM 1, 2, 3 models & Level 28).0 e2 e) J& e( h8 G( r+ V
4.Check your options .' F# D$ \# w+ `2 c7 b6 j
5.schmitt Triggers are unpredictable for DC sweep and sometimes for operating point for the same reasons Oscillators and Filp-Flops are use slow transient. |
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