Analog Electronics with LabVIEW®

P4.8. NMOS Circuit with Body Effect

Components Use RS from NMOSgamma.vi. Procedure Set RS. Install SPICE parameters from NMOSparam.vi and NMOSgamma.vi. Run NMOS_Cir.vi to obtain ID versus VGS with a sweep of VSS. The iteration solution obtained in SPICEgamma.vi (Diagram below) is compared in the graph of NMOS_Cir.vi. Adjust VSSinit to obtain IDmin of about 50μA. Re-adjust Gamma for best fit. Then save a data file with your data file name. The data file must be in the folder with the Mathcad file. The file name must have a *.prn extension.