SPICE Run Control Parameters

You can specify HyperSpice’s simulation control parameters which will affect the simulation time, accuracy, and convergence characteristics.



Figure 1.
ABSTOL
Reset the absolute current error tolerance of the program.
Default: 1 Nano-ampere
CHGTOL
Resets the charge tolerance of the program.
Default: 1.0e-14
GMIN
Resets the value of GMIN, the minimum conductance allowed by the program.
Default: 1.0e-12
VNTOL
Sets the absolute voltage error tolerance of the program.
Default: 10 micro-volt
ITL4
Reset the transient analysis time-point iteration limit.
Deafult: 10
METHOD
Sets the numerical integration method used by SPICE. Possible name is TRAP (or Trapezoidal) or BE (or Backward-Euler).
Default: TRAP
RELTOL
Set the relative error tolerance of the program.
Default: 0.005(0.5%)
TRTOL
Set the transient error tolerance. This parameter is an estimate of the factor by which SPICE overestimates the actual truncation error.
Default: 7.0
Simulation Temperature (C)
Sets the temperature of simulation.
Default: 25 (C)