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DC Analysis of MOS Advanced Active Load
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written 6.6 years ago by | • modified 5.8 years ago |
Figure (a) shows a MOSFET cascode amplifying stage with a cascode active load. The small signal equivalent circuit is shown in figure (b) where Ro3 is the effective resistance looking into the drain of M3.
In cascode current mirror,
Ro3=r03+r04(1+gmr03)
We can assume all transistors are matched so that the …