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Star-Hspice Quick Reference Guide

Star-Hspice Quick Reference Guide

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Model Analysis Options<br />

Option<br />

RELMOS = x<br />

RELV = x<br />

RELVDC = x<br />

ITL1 = x<br />

ITL2 = x<br />

NOPIV<br />

PIVOT = x<br />

PIVREF<br />

PIVREL = x<br />

PIVTOL = x<br />

SPARSE = x<br />

Description<br />

Sets the relative drain-to-source current<br />

error tolerance percent from iteration to<br />

iteration to determine convergence for<br />

currents in MOSFET devices.<br />

Sets the relative error tolerance for<br />

voltages<br />

Sets the relative error tolerance for<br />

voltages.<br />

Sets the maximum DC iteration limit.<br />

Sets the DC transfer curve iteration limit.<br />

Prevents <strong>Star</strong>-<strong>Hspice</strong> from switching<br />

automatically to pivoting matrix<br />

factorization when a nodal conductance is<br />

less than PIVTOL. NOPIV inhibits<br />

pivoting. Also see PIVOT.<br />

Provides different pivoting algorithm<br />

selections.<br />

Pivot reference.<br />

Sets the maximum/minimum row/matrix<br />

ratio.<br />

Sets the absolute minimum value for<br />

which a matrix entry is accepted as a<br />

pivot.<br />

Same as PIVOT.<br />

<strong>Star</strong>-<strong>Hspice</strong> <strong>Quick</strong> <strong>Reference</strong> <strong>Guide</strong> 12-11

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