example file for clipping and measurement

examples/measure/mos-meas-dc-clipped.sp

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+***** Single NMOS Transistor .measure (Id-Vd) ***
+* Do measurements
+* Clip the output current vector.
+* Do some measurements
+* Unclip the vector
+* Do all measurements again
+
+m1 d g s b nch L=0.6u W=9.99u  ; W is slightly below binning limit
+
+vgs g 0 3.5 
+vds d 0 3.5 
+vs s 0 dc 0
+vb b 0 dc 0
+
+* model binning
+* uses default parameters, except toxe
+.model nch.1 nmos ( version=4.7 level=54 lmin=0.1u lmax=20u wmin=0.1u wmax=10u toxe=3n )
+.model nch.2 nmos ( version=4.7 level=54 lmin=0.1u lmax=20u wmin=10u  wmax=100u toxe=4n)
+
+.control
+dc vds 0 3.5 0.05 vgs 3.5 0.5 -0.5
+meas dc is_at FIND i(vs) AT=1
+meas dc is_max max i(vs)
+meas dc vds_at2 when i(vs)=10m rise=1
+meas dc vds_at2 when i(vs)=10m rise=2
+* starting with branches in descending order of vgs
+* trig ist the first branch which crosses 5mA
+* Targ is the first branch crossing 10mA
+meas dc vd_diff1 trig i(vs)  val=0.005   rise=1 targ i(vs) val=0.01  rise=1
+* trig ist the first branch which crosses 5mA
+* Targ is the second branch crossing 10mA
+meas dc vd_diff2 trig i(vs)  val=0.005   rise=2 targ i(vs) val=0.01  rise=2
+
+plot i(vs)
+
+* clip the vector
+clip i(vs) 1 1.5
+plot i(vs)
+echo
+echo after clipping
+meas dc vds_at2 when vs#branch=10m rise=1
+meas dc vds_at2 when vs#branch=10m rise=2
+
+* restore the unclipped vector
+echo
+echo after unclipping
+clip i(vs) 0 0
+meas dc is_at FIND i(vs) AT=1
+meas dc is_max max i(vs)
+meas dc vds_at2 when i(vs)=10m rise=1
+meas dc vds_at2 when i(vs)=10m rise=2
+* starting with branches in descending order of vgs
+* trig ist the first branch which crosses 5mA
+* Targ is the first branch crossing 10mA
+meas dc vd_diff1 trig i(vs)  val=0.005   rise=1 targ i(vs) val=0.01  rise=1
+* trig ist the first branch which crosses 5mA
+* Targ is the second branch crossing 10mA
+meas dc vd_diff2 trig i(vs)  val=0.005   rise=2 targ i(vs) val=0.01  rise=2
+plot i(vs)
+
+.endc
+
+
+.end
+
+
+
+
+