Does the bias circuit need to operate in saturation region?

[shaq]

Dear all,

Does the bias circuit need to operate in saturation region?
If I let it in linear region, okay?

 

[renwl]

which part?
the mirror need to operate in saturation region.

 

[shaq]

Re: Does the bias circuit need to operate in saturation regi

As shown below (not included start-up circuit)

Which transistor did not need to operate in saturation region?

 

[yxo]

M1, M2, M4 always in saturation. M0,M3,M5 must be in saturation region

 

[amitjagtap]

In the circuit pmos cascode current mirror act as a load for nmos current mirror. here all transistors should be in saturation.