DC offset compensation feedback of multistage-amplifier

[surianova]

Would any people like to introduce me some good book or material,which describe
the detail of DC offset compensation feedback of multistage-amplifier?

I am currently working on high-speed limiting amplifier, however still not
clear about the usage of the DC feed-back. Personally, I think it make the
circuit operating point insensible to process variation. Right?

Some paper integrated the DC-feedback path on-chip, some put it outside and
make it tunable. Which way is used for which reason?

Can any one give me a clear picture of it? Any material or paper introduce it
will be very helpful to me, thank you!

Suria

 

[sunking]

behzad razavi offset cancellation

Swith cap opa can be offset compensation

 

[piao]

offset compensation

It depends on the usage. you can refer to the data conversion book written by Razavi. There are some offset cancellation comparator.

 

[shengan]

Re: offset compensation

https://focus.ti.com/lit/an/sloa059/sloa059.pdf

 

[selvaraja]

Re: offset compensation

Hai,

You can read Design of Analog CMOS Intergrated Circuits by Behzad Razavi ...chapther 13 Nonlinearity and Mismatch it is vey cleary explained .

 

[kkoko]

Re: offset compensation

for offset cancelation you can view in Johns book