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how to use measure command in hspice for DC analysis

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rajashekar333

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Hi all,
i want to calculate the intersection point of input and output of VTC of an CMOS inverter for different widths(used .param for .different widths) for DC analysis using HSpice.Can anyone suggest me to continue.
Regards,
-raj
 

you mean simulation result? i do not know what software you use to see waves, if you use sandwork's sx it seems to have a function to help you

rajashekar333 said:
Hi all,
i want to calculate the intersection point of input and output of VTC of an CMOS inverter for different widths(used .param for .different widths) for DC analysis using HSpice.Can anyone suggest me to continue.
Regards,
-raj
 

Thanks a lot for reply.i have used .meas command as
vin 0 3.3 0.05
.meas vect dc INV_CPP find v(4,2) when v(4,2)= v(1,2) rise=1
or
vin 3.3 0 -0.05 /*vin is vin 1 2 dc 3.3 */
.meas vect dc INV_CPP find v(4,2) when v(4,2)= v(1,2) fall=1
where v(4,2) is output and v(1,2) is input for inveter
 

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