Many thanks Ian.
It has really clarified my understanding.
Following are the answers to your queries:
What is the required signal bandwidth of your system?
As you have correctly identified, the input analogue signal itself does not have a large bandwidth…
Hi again Philipp,
To help you save space, If you're using the difference amplifier solution you should be able to get by without the optocouplers. For the difference amplifiers I would recommend the INA2132 or the INA149.
The INA2132 is a dual difference…