Hello! I am beginner in psoc.

It would help if you post or URL for the laod cell datasheet.

Basically 80% of the project can be done by placing the delsig on schematic, right click,

and you pick "find example project" for A/D, and import it into your build or use standalone.

Regards, Dana.

 Thank you for your quick reply.

http://www.loadcell-china.com/?mod=product&act=detail&id=41&categoryId=42&oneId=222222&type=1

Regards

Braka

For starters you need an Instrumentation Amplifier, PSOC can do that,

but at less precision than is avaiable as a dedicated IA chip. Plus the load

cell, if excited by > PSOC Vdda, implies the IA cannot be internal to PSOC,

due to its CM input range limitation on inputs.

I have attached some info that may be of help. Further info here on IA design -

http://www.ti.com/lit/an/slyt226/slyt226.pdf
http://www.analog.com/static/imported-files/application_notes/AN-244.pdf
http://www.analog.com/static/imported-files/design_handbooks/5812756674312778737Complete_In_Amp.pdf

I strongly recommend you set an error/precision/accuracy goal, then do an end

to end analysis of the errors to see if the PSOC IA solution will suffice.

Regards, Dana.

Thanks for the help Dana!

Try contacting the authors, their email address is at end of this article -

http://www.eetimes.com/design/industrial-control/4233537/Weighing-scale-design-Measure-signals-accurately

Regards, Dana.