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

Continues and switch-capacitor cmfb

Status
Not open for further replies.
A

akbarza

Full Member level 2
Joined
Dec 18, 2013
Messages
131
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,296
Activity points
2,556
Hi,please answer the following questions
1)- in which conditions are used continuse common mode and switch capacitor common mode feedback?
2)- what are their advantages to each others?
 

1) Continuous common mode feedback (CMFB) is used together with continuously operating OTAs, whereas switched capacitor (SC) CMFB is used for SC OTAs.

Hope I've understood your question correctly. The answer has nothing to do with the coupling from OTA output to the CMFB input. This coupling can be resistive and/or capacitive.

2) SC operation allows for sample and hold mode, and for low voltage offset operation. Continuous operation cannot offer such methods.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top