Analog Gain Factor Modeling K

1
Analog Gain Factor Modeling K Gmsat2
/(2?Idsat) vs. Gm/Id
moderate inversion
KGmsat2 /(2?Idsat) simulation shows an severe
modeling error in moderate inversion region (i.e.
VgsVtsat300mV), which is very important for
analog / mixed signal low voltage and low power
circuit design. Offset to measurement (i.e. peak
inside ellipse) is more pronounced at K in
comparison to Gm/Id plot.