Demonstration example: List of Matlab codes for the sizing of a two-stage CMOS amplifier:

gmn_modeling.m: modeling of the nmos-transconductance  of the BSIM4 transistor model as a function of the biasing variables
gdsn_modeling: modeling of the nmos-conductance of the BSIM4 transistor model as a function of the biasing variables
gmp_modeling.m: modeling of the pmos-transconductance  of the BSIM4 transistor model as a function of the biasing variables
gdsp_modeling: modeling of the pmos-conductance of the BSIM4 transistor model as a function of the biasing variables
polygdsn, polygdsp, polygmn, polygmp: generated conductance and transconductance models
polyfitn: fits a general polynomial regression model in n-dimensions
twostage_constraint.hys: isat3 input: two stage amplifier sizing constaints
voltage_current_ranges.txt: isat3 output: Computed DC voltage and DC current ranges of the two stage amplifier
clutering.m: data clustering and polynomial regression modeling of the tansistor width variable
wnmos: generated clustered polynomial model of the n-mos tansistor width as a function of the biasing variables
wpmos: generated clustered polynomial model of the p-mos tansistor width as a function of the biasing variables
widthsearch.m: determines the two-stage CMOS amplifier size using a global optimization procedure
for the conversion from bias to size ranges
objfun.m: objective function for the serach of the minimum transistor width
objfun1.m: objective function for the serach of the maximum transistor width
verifynlss2.m: Verify the existence of a solution for  a  nonlinear system of equations within a given candidate region.


***** For more information please contact Ons Lahiouel: lahiouel@encs.concordia.ca ******