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

How to improve the linearity of an op-amp?

Status
Not open for further replies.
M

mlkang

Newbie level 1
Joined
Nov 14, 2007
Messages
1
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,289
Hi all,

How to improve the linearity of an op-amp.I think there should be
many methods,but I don't know it clearly.
Anyone can show me the methods used commonly?
Or some paper about it.

THX
 

opamp and linearity

try to study this book:

Op Amps for Everyone by Ron Manchini

**broken link removed**
 

Re: Linearity of OP-amp

thanks
drming said:
try to study this book:

Op Amps for Everyone by Ron Manchini

**broken link removed**
Click to expand...
 

Re: Linearity of OP-amp

mlkang said:
Hi all,

How to improve the linearity of an op-amp.I think there should be
many methods,but I don't know it clearly.
Anyone can show me the methods used commonly?
Or some paper about it.

THX
Click to expand...

i think 2 ways can help:

1. Through negative feedback, it provide more linearity to the opamp.

2. Make sure when design opmap, the current mirror is in ratio.
 

Linearity of OP-amp

At the first All you tranasistors must be in saturation. Non-lineriaty caused with changing output resistance of transistor. This occur even transistor in saturation. Because MOS has length-modulation effect. As sad surianova, you mast use local feedback to stabilize operation points. Output stage added a lot of non-lineriaty.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top