What are the crucial points on opamp design ?

[atmaca123]

What are the crucial points on opamp design ?

 

[guamak_menanak]

Which technology do you prefer? CMOS or BJT?

There are many crucial point to put in mind to design an opamp, but it is based on your design requirement!

Try to list your design spec 1st (example:Av, f3db, GBW etc) and then try to reach the target! Then you will find what is the crucial point in your design.. :lol:

 

[Puppet1]

Check Johns/Martin - Analog Integrated Circuit Design Book.

Good introduction.

Crucial Specifications:

Gain
Bandwidth
Phase Margin
Gain Margin
Supply Voltage
Power Dissipation
Slew Rate
Output Impedance

 

[zanov]

Alll mentioned above, as well as high input impedance, low output impedance . Voltage driven rather than current driven.

All the crucial points of INTEREST look them up in manifacturer datasheet.

 

[xxargs]

Check Johns/Martin - Analog Integrated Circuit Design Book.

Good introduction.

Crucial Specifications:

Gain
Bandwidth
Phase Margin
Gain Margin
Supply Voltage
Power Dissipation
Slew Rate
Output Impedance

And important factor - Noise-level !!!

if you build high quality HiFi-circurits or low level
signal for example, you need calculate signal with
noise-flor from first OP-amp stage and so on...

 

[maharshi_qis]

depend on requirement and applications.
gen ICME,phase margin,slew rate ,swing ,gain ,ugb ,psrr are imp

 

[suria3]

It all depend on the specification that you are looking for. Most of the time the process we use to design a opamp will be the crucial point as it will limit the design parameters and the rest as others mentioned in the post.

 

[satyasiva]

there are several issues involved. it's better to start designing single stage opamp with a typical spec. then u will get a good idea.

 

[ravitest]

u follow the following book , will give the design flow of opamp

vlsi design techniques for analog and digital circuits by geiger