OPA2333: I want to know the inner structure and operation theory about OPA2333AIDGKR!

Hi Yang Kun,

I did not find a great deal of operational zero-drift or chopper op amp theory in our site.  If you google the zero drift or chopper amplifier over the internet, you will find plenty theory about the topics. I found INA333 Zero drift instrumentation amplifier in youtube.com, see below, Here are what I have found as examples:

https://www.ti.com/lit/an/slyt204/slyt204.pdf?ts=1601170395133&ref_url=https%253A%252F%252Fwww.google.com%252F

https://www.youtube.com/watch?v=F4Jyk8gKxd8

Our Analog  Engineer's Pocket Reference Guide for your Op Amp reference:

https://www.ti.com/amplifier-circuit/op-amps/technical-documents.html

The following is the op amp cross references that is equivalent to OPA2333 , perhaps you will learn additional information about the amplifier.   

https://www.ti.com/amplifier-circuit/op-amps/cross-reference.html?keyMatch=OP%20AMP%20CROSS%20REFERENCE%20TOOLS&tisearch=Search-EN-everything

If you have additional questions, please let us know. 

Best,

Raymond

Morning Yang Kun,

These choppers are actually quite involved internally, when the 1st BurrBrown one was developed (the OPA333) there was some effort to explain the internals - here is one of those, 

 Hi, Michael Steffes

I' m very glad that you offered me the PDF document. Thank you very much. I believe I will get what I need in it.