I have a DAC which output is 0 to 5Volts. I would like to amplify to +-15volts. Is there any common op.amp sch. or analog circuit/device for doing this?
The classical inverting circuit will work. Have the gain of six from your DAC and then another resistor to the summing junction to get the offset back down to zero.
You will have to use supply voltages of greater than 15V and a rail to rail output type amplifier.