MOSFET and resistor sizing for a circuit design problem

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Gilster
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Hi,

I've been stuck for hours and I was hoping anyone can help. I'm not even sure how to start the problem. Am I supposed to find the value of the resistor R or find different w/l values for the mosfets? How do I approach the problem? Any help is greatly appreciated. Thanks.
 

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Hi Gilster. http://img96.imageshack.us/img96/5725/red5e5etimes5e5e45e5e25.gif

Using the constants given, what is your equation relating ##I_D## to ##V_{GS}##?
 
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