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[SOLVED] simple bias circuit design

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tinatoras

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Hi,

I'm designing this bias circuit.

64_1304684065.png


I used the equation in Razavi's book, but the transistors didn't work in saturation. How to choose W/L ratios to insure they are working in saturation.

Thanks.

---------- Post added at 15:18 ---------- Previous post was at 13:20 ----------

Any help please.
 

Thanks windknows.

I'll try this.

---------- Post added at 22:04 ---------- Previous post was at 20:58 ----------

It works.
Thanks again windknows.
 

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