Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Looking for circuits with common mode feedback

Status
Not open for further replies.
A

A.Anand Srinivasan

Advanced Member level 5
Joined
Oct 15, 2005
Messages
1,792
Helped
257
Reputation
514
Reaction score
39
Trophy points
1,328
Location
India
Activity points
10,678
i've been working on differential output op-amp and i found that common mode feedback(cmfb) is an important criteria for that but i was able to find only theory about it.... can somebody help me with some circuits.....
 

Re: common mode feedback

Hope it helps.

**broken link removed**

BR
 

Re: common mode feedback

You can refer to "Design of analog CMOS integrated circuits" by Razavi chapter 9 but most of its circuits are rather hard to implement .A practical CMFB circuit would be the same as the unbalanced diff amplifier (the one loaded with current mirror) but by replacing one of the input transistors by 2 parallel transistors each having its gate connected to one of the different outputs of the original amplifier and the other input is connected to Vref .
 

Re: common mode feedback

hakeen said:
Hope it helps.

**broken link removed**

BR
Click to expand...

This pdf file is very very useful
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top