stupid question about starting analog design

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heverlee

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Hi:

I am an analog newbee who is still digging into the books for design techniques.

I wonder in the real design, do the expierenced people really try to characterize those K values from models and use square law to get the first estimation of the device dimensions? I see all the books are doing like this, is this also the case in industrial design?

do you have other alternatives?

thanks a lot
 

what do you mean by analog design?
 

What's the meaning of K? Is K the transcondutance parameter? Is yes, it depends on the technology you are using.
For example, if you are designing a circuit in technology CMOS 0,35, Kn= 120 µA/V2 and Kp=50 µA/V2.

I hope it helps you.
 

Hi,
While designing analog circuits one first does so called "back-of-the-envelope calculations" where you use simplified, scaled-down models and you try to understand the trend as you change some parameters etc.Once you have an rough estimate ,you can improve on your designs by simulation tools to conform to the given specs.
 

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