Is there any better OP than OPA2134

[gholl]

Supply rail decoupling works well with X7R ceramic capacitors.
Signal handling works well with NP0 ceramic capacitors.

Only in extreme need where space and cost override everything else, do you use Hi K ceramic.

Well said! X7R are OK for decoupling, but they're still microphonic. NPO/COG are good alround, but bigger and it didn't stop me using 470nF's in the rumble filter of my MC pre-amp.
graham

 

[90125 Mike]

Here is an Analog Devices tutorial - Decoupling techniques. Might be useful.
http://www.analog.com/media/en/training-seminars/tutorials/MT-101.pdf