You may use an PSoC5 internal opamp and connecting 4 resistors to get your desired differential amplifier with gain 10.
Some thoughs -
1) The input buffer is differential, and you can get a G = 8 out of it.
2) The input buffer z is fairly low, check datasheet, so you can do
design calculaltions for CMRR.
3) Design needs to start with desired resolution and accuracy, so you
can do a signal path analysis. If you are at higher resolution take
a look at the datasheet for CMRR vs G. In advisable to use a single
OpAmp with 4 Rs for a diff map. You will have limited CMRR. Think
about using a single chip, 3 amp IA, they are factory trimmed, for T as
well,can approach 22 - 24 bit performance,
If you want a lot f ref material I can email you, send me your address
and I will forward.
Thank you guys!!! You are very helpful! I'm a beginner of PSoC but it seems amazing. I've have some basic idea of that with your help. My mail address is email@example.com. I'll really appreciate if you could send me more reference.
I have forwarded the ref material.