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What are the different types of processes in CMOS?

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suhas_shiv

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What are the different types of processes in CMOS? What are their advantages and disadvantages? I have heard of N-well, pwell processes but don't know much about the processes.
Also, could someone please give me some idea about constant Gm circuits. Why are they used etc?

Appreciate the response.Thanks.
 

safwatonline

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Processes in CMOS

i think constant Gm circuit are used in some kind of filters called Gm-filters, where the OTA is used in open loop configuration and the value of Gm is important , not as in OPamp where we want just a high value cause the opamp gain will be considered by the feedback section,
iabout the process u are talking very general u should specify what u want to know , try to read some VLSI technology book
regards,
a.safwat
 

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