I had to design a circuit for measuring the voltage of a negative power supply rail (-15 V) and feeding it into a ADC (0-3 V DC-coupled input range). This measurement is only used for diagnostics and doesn't need very high accuracy for our purposes, so I didn't think twice and just used the inverting-opamp configuration amplifier to apply a gain of -0.15 (not in dB) to get the proper scaling and 180 degree phase shift.
After talking to some colleagues I learned that there is the possibility of having stability issues depending on the opamp. They said that some opamps will explicitly tell you in the datasheet what kind of gains and configurations they will be stable in, but the opamp we currently need in other places (LM833DGK) doesn't mention that kind of data. I also tried doing some analysis using feedback theory, but I couldn't get the results I need with the plots given in the datasheet.
This is driving me nuts because it is something I've never seen mentioned at school, or The Google as far as my search results say, but makes sense.
Can anyone give me advice on how to make sure that this circuit will be stable under all conditions? (It is now, but I can't guarantee for different noise, temperature, time-of-day, etc.).