Transcription of W = 10 m, L= 2
{{id}} {{{paragraph}}}
1. MOSFET Equations a) N- channel MOSFET Cut Off ! VGS"VT ! IDS=0 Linear ! VGS>VT, ! VDS"VGS#VT ! IDS= nCoxWLVGS"VT()VDS"VDS22# $ % & ' ( (1+)VDS) Saturation ! VGS>VT, ! VDS>VGS"VT ! IDS=12 nCoxWL(VGS"VT)2(1+#VDS) The simplest model in SPICE (Level 1 or default model) uses the above equations. Parameter SPICE Parameter Units Typical Values nCox KP A/V2 200 VT0 VTO V LAMBDA V-1 b) P- channel MOSFET Cut Off ! VSG"VT ! ISD=0 Linear ! VSG>VT, ! VSD"VSG#VT ! ISD= pCoxWLVSG"VT()VSD"VSD22# $ % & ' ( (1+)VSD) Saturation ! VSG>VT, !
The simplest model in SPICE (Level 1 or default model) uses the above equations. Parameter SPICE Parameter Units Typical Values µ nC ox KP A/V 2 200µ V T0 VTO V 0.5 – 1.0 λ LAMBDA V-1 0.05 – 0.005 b) P-channel MOSFET Cut Off ! V SG "V T! I SD =0 Linear ! V SG >V
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document:
{{id}} {{{paragraph}}}