06-12-2012, 01:46 PM
Noise in low-voltage circuits
5Noise in low-voltage.ppt (Size: 1.57 MB / Downloads: 32)
Noise in MOS Transistors
Flicker (1/f) Noise
Modeled as voltage source in series with the gate
Inversely proportional to the frequency (important al low frequencies)
Inversely proportional to the MOS area (large transistors have less Flicker noise)
Inversely proportional to the specific capacitance COX
It is caused from charge carriers trapped at the interface between silicon and oxide or fluctuation in the mobility of the charge carriers
k is process-depending (about 10-25 V2F)+