yeknight
Newbie level 4
When I design an OTA,after I compute the W/L of all MOSFETs,but when I simulate the OTA,I found the MOSFETs not working in the Saturati.How to modify the W/L of the MOSFETs in general,could you give me some experence?
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M5 is always work in Linear,what is the problem, how should I adjust?
Your vin potential defines VDS(M5).
If you want M5 to operate in saturation region,
both {vin+,vin-} > Vdsat(M5) + Vth{M1,M2} .
... e. was implying that M1 works with low overdrive voltage. I just wanted a confirmation and to give a more general equation.