Oh this brings back memories.
I reluctantly admit that many of those memories are of parts I didn't use right.
It looks like you've found some of the same old schematics I found back in the day. That's why you are fighting with it.
building from the ground up, your first objective is to get it to amplify clean. A modest gain of 2 or 3 is fine for proof of concept.
Just why is the ground leg of your negative feedback loop going to voltage _ instead of your Vref floating ground?
I reluctantly admit that many of those memories are of parts I didn't use right.
It looks like you've found some of the same old schematics I found back in the day. That's why you are fighting with it.
building from the ground up, your first objective is to get it to amplify clean. A modest gain of 2 or 3 is fine for proof of concept.
Just why is the ground leg of your negative feedback loop going to voltage _ instead of your Vref floating ground?