Question about auto-zeroing offset in amplifiers

Status
Not open for further replies.

keiichi451

Newbie level 4
Joined
Oct 2, 2005
Messages
7
Helped
1
Reputation
2
Reaction score
0
Trophy points
1,281
Activity points
1,329
This question pertains to auto-zeroing offset in continuous time using a feed-forward topology.

I've read that for the nulling amplifier to read the main amplifier offset, the total system must be placed in a negative feedback. Why is this the case? How does it work?

Any comments/help would be greatly appreciated. Thanks.
 

Status
Not open for further replies.
Cookies are required to use this site. You must accept them to continue using the site. Learn more…