I'm designing an audio circuit and have to choose whether to go for a single rail or balanced supply IC.
For single rail op amps are there any available that internally create a negative rail with a kind of built in switching regulator, so even though the designer has only a 9V battery to play with you can still get an output that swings above and below the earth rail?
If not I guess for single rail op amps in audio circuits, you have to level shift the resulting output back to a zero offset - or you have a kind of level shift distortion.
For single rail op amps are there any available that internally create a negative rail with a kind of built in switching regulator, so even though the designer has only a 9V battery to play with you can still get an output that swings above and below the earth rail?
If not I guess for single rail op amps in audio circuits, you have to level shift the resulting output back to a zero offset - or you have a kind of level shift distortion.