Shaun,
A comparison of the parts mentioned previously (OPA132, TLE2071 and OPA141) shows that the OPA132 has the best offset voltage (Vos) and open loop gain (Aol). A larger open loop gain will allow for more correction in gain error. The OPA141 has…
Hello Alex Baikov,
Here are the crosses using http://focus.ti.com/general/docs/searchgpn.tsp?newSearch=Y
The forum may have cut off some text, so see attachment.
LF357
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Manufacturer
Manufacturer GPN …
HI Paul,
Many thanks for your speedy reply and suggestions.
I tried so many things to tame the new circuit I forget what I did. I know I decoupled R10 with a large cap and I scrutinised the supply rails for any sign of the fast spikes. I am not sure which…
Saddin,
Attached is a good presentation that covers the subjects of chassis grounding, and PCB grounding. I think slides 39-41 are most pertinent to your question. I suggest looking through the slides and see if they help. Henry Ott has a very good book…