I want to know obout the construstion of digital voltmeter using ic7107 .
please give me theoritical details obout every component required for this task.

 

That would require several books. I suggest you enroll in school where you can get those books and help to study them.

 

The data sheet that you can find by using "icl7107" as a search term will give you much of that information. Then you can ask specific questions.

 

Hello,

This application note from intersil will tell you a lot.
(see attached PDF).

Bertus

 

Dear DX3,
Please give me details of some books that improves my concept in circuit designing, electric components behaviour.

 

Right here^
at the top of the page.
There are beginners books all in a row, for FREE!

When you put a few ideas together and begin to understand, you can ask questions on this forum.

 

Thats right, start here:
http://www.allaboutcircuits.com/vol_1/index.html

 

I want to know obout the construstion of digital voltmeter using ic7107 .
please give me theoritical details obout every component required for this task.

I just happen to have a complete schematic of the meter I built some time back using a 7107. You do realize you will be spending about $300 and a hundred hours of time building a meter you could buy for about $50....

 

I just happen to have a complete schematic of the meter I built some time back using a 7107. You do realize you will be spending about $300 and a hundred hours of time building a meter you could buy for about $50....

Or less..WAY less.

 

Or less..WAY less.

Not to be immodest, but I souped the meter up pretty good. It's basic accuracy is about .05% DC, and I added a wideband AC signal process block to extend the usable AC bandwidth to about 150 kHz. I think it might be as good as a pretty decent $100 meter these days.....

And if I allow myself $5/hour for all the time I spent fiddling with it, I probably only have about $500 in it. But it made me some money, as I recall some of the stuff I built for it got published in a magazine and I got paid for that...