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How to do advanced Analysis in ADE XL GUI

wgtkan

Hello,

Is it possible to do advanced sweep analysis using the GUI in cadence virtuoso ADE XL?

To be specific I am able to launch spectre simulation from a command line using spectre netlist as in the attached example called nfet_char.scs

Fullscreen nfet_char.txt Download 
// Characterization of NMOS transistor
simulator lang=spectre
// model files
include "/grps/ef-test/GF8HP/Models/Spectre/models/design.scs"
include "/grps/ef-test/GF8HP/Models/Spectre/models/wafer.scs"
include "/grps/ef-test/GF8HP/Models/Spectre/models/allModels.scs" section=tt

// save results
save mn
// Assiging Parameters
parameters vds=1.2 vgs=0.6  vsb=0

// Scheamtic descriptions

vdsn (vdn 0) vsource dc=vds
vgsn (vgn 0) vsource dc=vgs
vbsn (vbn 0) vsource dc=vbs
mn (vdn vgn 0 vbn) nfet l=0.12 w=10u nf=5


// Defining options
options1 options gmin=0.1p reltol=0.1m vabstol=1u iabstol=100p
options2 options temp=27 tnom=27
options3 options save=allpub rawfmt=psfbin rawfile="./cs.raw"

// Advance sweep simulation
sweepvds sweep param=vds start=0 stop=1.2 step=25e-3 {
sweepvgs dc param=vgs start=0 stop=1.2 step=25e-3
}

I have read spectreuser pdf documentation starting page 349 under Advanced Analysis (sweep and montecarlo) but it doesn’t specify how to perform this type of simulation in the ADEXL GUI.

Thank you so much in advance.

  • ADE XL does not use the sweep analysis (except for a few specific cases, mainly with the RF analyses). Instead, it runs multiple simulations to allow them to be run in parallel. In ADE Explorer/Assembler, if there are sweeps and fewer jobs than sweep points, then it will (by default) run the sweep within the simulator, but this is done by ADE talking to spectre rather than using a sweep analysis.

    The Monte Carlo sweeps are performed however using the "Monte Carlo" run mode (this will add a monte carlo analysis into the netlist).

    Regards,

    Andrew.

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