hi Ali mohammadi

can you please be bit elaborate for which particular application you need the reference

hi Mr.Arun i need to amplify a wee electrical current

Some general op-amp topologies shown in this LM324 data-sheet:

http://www.datasheetcatalog.org/datasheet/nationalsemiconductor/DS009299.PDF

There is a useful range of short tutorials (including several op-amp topics) here:

http://www.wisc-online.com/ListObjects.aspx

John

thank you Jay Sykes it was very useful

May be something like this will be helpful:

http://www.analog.com/library/analogDialogue/archives/39-05/op_amp_applications_handbook.html

thannk u Mr.zmigrodzki i was looking for something like that specially sensor signal conditioning part.

Dear Mr. Hadi Alimohammadi,

please study "Industrial Control Electronics: Applications and Design" book.

this book is proper for you.

Thanks soheil jan!

Hii Mr HADI, you can also refer one book "Linear integrated circuit" written by R gayakwad.

thank u Mr.Garg

\http://ebookbrowse.com/philbrick-operational-amplifiers-1300-series-pdf-d330765722