What is the region of subthreshold transistor when vds is less than vdsat

Status
Not open for further replies.
I

ICdesignerbeginner

Member level 5
Joined
Nov 22, 2017
Messages
86
Helped
1
Reputation
4
Reaction score
2
Trophy points
8
Activity points
729
Hi
Can some one tell me what is the transistor operating region when vds is less than vdsat. I am operating the transistors in subthreshold region and in subthreshold vds is greater than vdsat to operate in subtbreshold saturation.

What if in subthreshold vds is less than vdsat? Is it in subthreshold triode.

I havent Read subthreshold triode word in any research paper or book.
 

MOSFET operation in triode region or in saturation region is completely independent of subthreshold (= moderate or weak inversion) mode or strong inversion mode (or region) operation, i.e. all combinations are possible. Operation in subthreshold mode in triode region is just one of these combinations.

Independent of subthreshold or strong inversion operation, if vds < vdsat, the MOSFET operates in triode (=ohmic or linear) region.

Perhaps this diagram can help to make it clearer:

The triode region is at the left of the dashed VDS,sat (=vdsat) line, the saturation region at the right side of it.
 

    M

    melkord

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…