bjt gain vs cmos gain
I copy and paste the following definition from the forum.
Physically, BJT ==> diffusion current, MOS ==> drift if I may add...
Here are some comparison of BJT/CMOS and BiCMOS as well.
CMOS Vs BJT
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-Less power dissipation
-less noise margin
-better packing density
-ability to intergrate large and complex circuits and functions with high yield
-Good switch (in digital design)
BJT Vs CMOS
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-high switching speed
-high current drive per unit area
-analog capabilty on amplification
-better noise performance
-high speed intergration
-high transconductance thus will have higher gain.
BiCMOS Circuit Advantages
===================
-Improved speed over CMOS
-Lower power dissipation over BJT
-high performance analog
-Intergration flexibility
-latchup immunity
-high input impedance (CMOS)
-high gain (BJT)
-low noise (flicker noise)
-low input offset voltage for diff pair
-zero offset analog switches
-gain bandwidth product extended
-good voltage reference design
Regards,
Suria3