that's the beauty of opamps, there is no ground pin.
basically ground is just a "referance". an opamp tries to do one thing: make the input terminal become equal in voltage by use of a feedback path.
as you can see, ground isn't mentioned, and doens't need to be attached to the chip. notice that all opamp circuits will have resistors attached to ground and to an input. this is a way of referanceing the signal to ground. so long as the output stays between +18V and -18V it is fine, and you could build the circuit so Vcc/2 was concidered ground.
basically ground is just a "referance". an opamp tries to do one thing: make the input terminal become equal in voltage by use of a feedback path.
as you can see, ground isn't mentioned, and doens't need to be attached to the chip. notice that all opamp circuits will have resistors attached to ground and to an input. this is a way of referanceing the signal to ground. so long as the output stays between +18V and -18V it is fine, and you could build the circuit so Vcc/2 was concidered ground.
well, if you run from single supply you need to add a DC offset to the input signal, then remove it from the output signal.
basically, the opamp will try to output a signal that would make both input terminals be at equal voltage. now for an AC input, that means there are times when the opamp needs to put out a negative voltage, and times when it needs a positive voltage. if you run from a single supply, the opamp will not be able to put out negative voltages, as the power supply will not allow it. so if you add a little bit of DC to the AC signal, you will get a signal that you can work with, but also you will need to remove the DC offset. this means capacitors in the signal path. most audiophiles attempt to minimize the number of capacitors and especially the number that could most affect the signal.
i would use a split supply if possible. if you must do single supply: http://instruct1.cit.cornell.edu/courses/bionb440/datasheets/SingleSupply.pdf
basically, the opamp will try to output a signal that would make both input terminals be at equal voltage. now for an AC input, that means there are times when the opamp needs to put out a negative voltage, and times when it needs a positive voltage. if you run from a single supply, the opamp will not be able to put out negative voltages, as the power supply will not allow it. so if you add a little bit of DC to the AC signal, you will get a signal that you can work with, but also you will need to remove the DC offset. this means capacitors in the signal path. most audiophiles attempt to minimize the number of capacitors and especially the number that could most affect the signal.
i would use a split supply if possible. if you must do single supply: http://instruct1.cit.cornell.edu/courses/bionb440/datasheets/SingleSupply.pdf
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