MOSFET Resistance rout and Rds (ON)

Hi,

Would you be kind to answer my following question?

Is Rds(ON) and rout [=1/(lambda*Id)] the same of any MOSFET?

Thank you.

RdsOn applies when Vgs >> Vth
Rout applies when Vgs ~ Vth and used for gain control or linear operation

Hi,

Thank you for your reply.
Does Rds(ON) depends on device geometry?
Could you please explain me?

Regards.

It depends on the channel width and length, you surely can find different Mosfet devices with the same Rds(on).

Hi,
I have checked with TSMC180nm process technology file (rf018.scs).
Nowhere, I have found a device parameter called rds.
Could you please guide me where where can I get the value of rds(on) for nmos2v cell of 180nm technology?

Thank you.

With regards.