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How to plot the parameter region after DC sweep in Cadence?

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safwatonline

safwatonline

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hello,
i want to check when a MOS will enter linear region cannot i plot the parameter region after DC sweep
 
Re: cadence

i see the region of MOS transistor by Result>print >operating point>
see the region if region=2 -----> sat.
but as sweep i hope to know

Added after 1 hours 6 minutes:

you can make parametric sweep and see operating point by
Result>print >operating point>
see the region if region=2 -----> sat.
it will displayed in column corresponding to the parameters
 

Re: cadence

hello Hooda , how r u?
region
0 >>> cutoff
1 >>> linear
2 >>> saturation
3 >>>> subthreshold
4 >>>>> breakdown

my question is not how to view it but how to plot it.
thnx.
 

Re: cadence

safwatonline said:
3 >>>> subthreshold
.
Click to expand...
WOW are u sure ..can i consider it cutoff :| i have transistor in region =3..!!!

you can try parametric sweep and monitor the region corresponding to each param
 

cadence

yep , i think i am sure "u make me doubt but i am working on that concept the whole last period so it better be true :D"
can u explain more hat do u mean by parametric sweep , as i dont get how it will solve the plotting issue.
maybe i am not clear so what i exactly need is a line to add in the calculator to plot something like "region" parameter with time for instance.

Added after 1 minutes:

well about if u can consider it cutoff well for me i think not but u can see the current in thi case if it is like in fa or pa or something i guess then yes if it is in uA then i guess not.
 

Re: cadence

i mean monitor it in printing >operating point Safwat :D as numbers
but plotting i donot know
it is nA :|? and it should be off for right operation??
there is a manual way
you can plot VGS-Vth(as a no) & plot VDS by calculator and show when one curve above the other ...funny way :D
 

    safwatonline

    safwatonline

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cadence

iwell it is all up to u "and DR.Emad :D", i guess it acts like a switch for enabling "power down " , so i guess u can live with it if the power down current "total" is OK "within the limit that u have " or if not then try to decrease the Vg more to make sure it is below Subthreshold :D.
 

Re: cadence

safwatonline said:
iwell it is all up to u "and DR.Emad :D", i guess it acts like a switch for enabling "power down " , so i guess u can live with it if the power down current "total" is OK "within the limit that u have " or if not then try to decrease the Vg more to make sure it is below Subthreshold :D.
Click to expand...
hi safwatonline

introduce this expression in your ADE (
OP("/M0" "region")
here M0 is the name of ur transistor
 

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