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Audio opamp power supply

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Mahen K

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Hi,

Most of the opamp based audio filters, I-V converters, differential to
single ended converters, preamps, buffers use +/-12V or +/-15V supply
though the opamp can be operated from as low as +/-5V. Is there any
benifit of using higher volatge power supply for opamps used
particularly in audio related circuits? I have AD797 for DAC output
stage for I-V converter and then for differential to single ended
conversion. What are the disadvantages w.r.t audio quality parameters
like THD+N, Dynamic Range if we operate the opamp at lower volatge
like +/- 6V?

Thanks
Mahenk
 

There is a greater risk for clipping when choosing lower voltage.
 

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