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List some probably if nonconvergence...
1.Be sure to check your model parameter units.4 S3 U( t0 o8 w: V4 u0 r' Z* o
2.Use MOS ACM=1,ACM=2,or ACM=3 source and drain diode calaulation to automatically generate parasitics.
3 W- E6 ^1 b; B* C: N3.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).
" p0 E, @- ^* p7 S+ p) o4.Check your options .
# j7 d' _( R3 i3 J4 L# e7 m. T5.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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