I am new to this matter and would like to learn how could I determine the right filters to use for my circuit. I have read some tutorials about active and passive filters but can't get the right values for it. I have also read about the formula of getting the values but dont know how to determine the corner frequency of my circuit.
I am currently making a basic circuit for a weighing scale and I want to know what type of noise affects my load cell output as well as my op-amps. I use AD620 as my in-amp. http://users.ece.utexas.edu/~valvano/Datasheets/AD620.pdf
and AD822 as a difference amp and a non-inverting amp since it is dual. http://www.analog.com/static/imported-files/data_sheets/AD822.pdf
Based on the datasheets, I can't determine what part of the characteristics would be a help to know what filter and values are needed. I think I need filters between my load cell and in-amp, and also for the non-inverting and difference amp.
Sorry for the noob question but any help would be appreciated and I am willing to learn. FYI, I use a full-bridge load cell for my pressure sensor.
Here is my circuit: