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ObjectiveThe main objective of this experiment is to get familiarize with the simulation of simple MOS circuits using SPICE tool The MOSFET amplifier properties were discussed in part 1 and the CMOS inverter was discussed in part 2ProcedureDiscussion Part 1We used the following simulation code to see the behaviour of DCAC analysis and PSPICE simulator which has been provided in the manualCoode for the Enhancement-Mode NMOS Amplifier Circuit Description DC suppliesVdd 1 0 DC 15V input AC signalVi 4 0 DC 0V amplifier circuitM1 2 3 0 0 nmosenhancementmosfet L 10u W 10uRd 1 2 10kRg 2 3 10MegC1 2 5 1GFC2 3 4 lGFloadR1 5 0 10k MOSFET model statement level 1 by defaultmodel nmosenhancementmosfet nmos kp 025m Vto l5V lambda 002 Analysis Requests OP Output Requests none requiredendThe procedure to use PSPICE for this experiment is as follows1 Log onto Windows Sun PCI2 For most computers the file folder MacroSim is located on the desktop Doubleclick it then open TextEdit Alternatively you can select Start-Programs-MacroSim Eval-Accessories-Macrosim TextEdit3 Input codes of Fig 224 Save the file as filenamecir5 If theMacroSim is shown on the desktop double click it and then open pspiceadOr select Start-Programs-MacroSim Eval-PSpiceAD6 Click file-open then select the file you have saved filenamecir and theSimulation will run automatically7 To see the result click file-examine outputPart 2Similar procedure was used for the CMOS inverter as wellThe Code for this was The CMOS Inverter
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