hw3ChanLenMod

hw3ChanLenMod - 2 Channel length modulation 2 Channel...

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2. Channel length modulation 2: Channel Length modulation Idsat=3ma at Vds=1.05V slope is dI/dV~(3.4mA-3mA)/(4V-1.05) > Theoretical result > gds:=(3.4e-3-3e-3)/(4-1.05); rdsSim:=1/%; := gds 0.0001355932203 := rdsSim 7375.000002 > gds=lam*Idsat, lam=0.05, Idsat=3e-3; subs(%,gds); rdsCalc:=1/%; , , = 0.0001355932203 lam Idsat = lam 0.05 = Idsat 0.003 0.00015 := rdsCalc 6666.666667 which is within 10% of the simulation (and is better than usual for channel length modulation in level 1) > (rdsSim-rdsCalc)/(rdsSim); PercentDiffFromSim:=%*100; 0.09604519794 := PercentDiffFromSim 9.604519794 > SPICE TRACE >
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V_Vds 0V 1.0V 2.0V 3.0V 4.0V 5.0V id(m1) 0A 1.0mA 2.0mA 3.0mA 4.0mA **** 01/27/08 11:05:03 *********** Evaluation PSpice (Nov 1999) ************** ** Profile: "SCHEMATIC1-ChanLenMod" [ C:\Documents and Settings\glb\Desktop\h3\h3-SCHEMATIC1-ChanLenMod.sim ] **** CIRCUIT DESCRIPTION ****************************************************************************** ** Creating circuit file "h3-SCHEMATIC1-ChanLenMod.sim.cir" ** WARNING: THIS AUTOMATICALLY GENERATED FILE MAY BE OVERWRITTEN BY SUBSEQUENT SIMULATIONS
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*Libraries: * Local Libraries : .LIB ".\h3.lib" * From [PSPICE NETLIST] section of pspiceev.ini file: .lib "nom.lib"
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This note was uploaded on 03/30/2009 for the course ECE 403 taught by Professor Bilbro during the Spring '08 term at N.C. State.

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hw3ChanLenMod - 2 Channel length modulation 2 Channel...

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