How to improve the accuracy of DC computation in HSPICE?

[xuezfeng]

HSPICE question!!!!!

could someone tell me how to improve the accuracy of DC(operating voltage)computation? Ex. more than four digit after decimal.
thanks!

Edited the long subject line
/Cl

 

[Hughes]

help!!----------------HSPICE question!!!!!

Do you mean the simulation accuracy or the output precision? If you want to increase the number significant digits of printout data, you may use a option:
.option numdgt=7
If you want to increase the number of digit of measurement data, you may use:
.option measdgt=7

 

[jordan76]

Re: HSPICE question!!!!!

In my opinion, "Ex. more than four digit after decimal" is not normally needed for DC(operating voltage) analysis.

Please correct me if I am wrong.

regards,
jordan76

 

[xuel]

Re: HSPICE question!!!!!

use
.options abstol= absvdc=
to increase accuracy