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List some probably if nonconvergence...
1.Be sure to check your model parameter units.
# U6 g6 g; }- h1 p+ b2 Z- C$ d2.Use MOS ACM=1,ACM=2,or ACM=3 source and drain diode calaulation to automatically generate parasitics.& ?" M0 P( F, p4 s$ b' _
3.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).7 Z/ T' k( v( W% j
4.Check your options .
# @/ Y+ U. M: k" w. W& P# ]% l5.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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