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

[Moved]: Frequency compensation using nulling resistor

Status
Not open for further replies.
A

anhnha

Full Member level 6
Joined
Mar 8, 2012
Messages
322
Helped
4
Reputation
8
Reaction score
4
Trophy points
1,298
Activity points
3,684
Below is a problem I had while reading about frequency compensation in
Allen and Holberg - CMOS Analog Circuit Design (page 264).
Could you explain how the author used the assumption that Rz is less than RI and RII and poles are widely spaced to get these roots?

Nulling resistor.PNG
Pole and Zero.PNG
 

I think in a way that if Rz is more the output resistances of amplifies 1 and 2 will get effected causes there is unwanted results in pole shifting. But analysing above equations is somewhat difficult, i think better to analyse by the operations way.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top