* ***********************************************************************
* nmos180 represents a 4 terminal 0.18u NMOS device
*
* usage : xm12 nd ng ns nb nmos180 wp=1.0 lp=0.18 mp=2
* ***********************************************************************

.subckt nmos180 nd ng ns nb
+ wp=0.0
+ lp=0.0
+ mp=0

.parameter wval='wp*1.0e-6'
.parameter lval='lp*1.0e-6'
.parameter mval='mp'

.parameter adval='wval*0.27e-6'
.parameter asval='adval + wval*0.21e-6'

.parameter pdval='wval*0.21e-6'
.parameter psval='pdval + 2.0 * wval'

.parameter nrdval='0.27e-6/wval'
.parameter nrsval='0.27e-6/wval'


mnmos180 nd ng ns nb nch180_murmann W=wval L=lval M=mval
+ AS=asval AD=adval PS=psval PD=pdval NRS=nrsval NRD=nrdval

.ends
* ***********************************************************************



* ***********************************************************************
* pmos180 represents a 4 terminal 0.18u PMOS device
*
* usage : xm12 nd ng ns nb pmos180 wp=1.0 lp=0.18 mp=2
* ***********************************************************************

.subckt pmos180 nd ng ns nb
+ wp=0.0
+ lp=0.0
+ mp=0

.parameter wval='wp*1.0e-6'
.parameter lval='lp*1.0e-6'
.parameter mval='mp'

.parameter adval='wval*0.27e-6'
.parameter asval='adval + wval*0.21e-6'

.parameter pdval='wval*0.21e-6'
.parameter psval='pdval + 2.0 * wval'

.parameter nrdval='0.27e-6/wval'
.parameter nrsval='0.27e-6/wval'


mpmos180 nd ng ns nb pch180_murmann W=wval L=lval M=mval
+ AS=asval AD=adval PS=psval PD=pdval NRS=nrsval NRD=nrdval

.ends
* ***********************************************************************