How to measure the offset voltage of the comparator ??

Status
Not open for further replies.
R

ronanchang

Junior Member level 2
Joined
Oct 21, 2004
Messages
21
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
210
how to measure the offset of comparator

How to measure the offset voltage of the comparator through Hspice simulation programs??
 

In allen's book, there is an detail explain to measure the opamp parameter. you can get your answer.
 

Put a ramp (or a stair case) at the input of the comparator and see for which input voltage the output state changes.

Do not forget to make monte-carlo simulations, to account for the mismatches of the components.

Regards
 

You have to sweep the input signal diference
(Vp-Vn) with DC simulation (not transient)
and check at which Vp-Vn difference value
the output of the comparator reaches to mid supply
 

Is your models correct for the offset simulation?
 

model? why there is the kind of model that is not correct for the offset simulation?
 

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…