Threshold Voltage sweep in HSPICE

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thealpha

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I am trying to run a HSPICE simulation which involves testing for a sense amp Vth mismatch on the circuit.
I want to make a graph Voltage/Time with multi lines of different Vt's. (increment sweep, not monte carlo)

Hspice manual has an syntax for mismatch but, not threshold voltage(Vt)

There's the manual syntax for mismatch below
It might be helpful for you

How can I sweep Vt with increment "ΔV(vdelta)" and make data table?


Referring this syntax, I made code but it didn't work
(vdelta means increment Vt to sweep, used DELVTO to shift Vt)

Code:
.DC vdelta start=0.0 stop=1 step=0.1
~~~~~~~
*SENSE AMPLIFIER
MSN1 (node) (node) (node) (node) NMOS1 W=130n L=65n DELVTO=vdelta
~~~~~~~
.TRAN 0.01ns 20ns start=0ns
 

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