Any consensus on which has better perceptual audio performance (unity gain) in diff output stage of DAC? Seeking ultimate audio-band noise performance - open to other suggestions.
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The AD797 has similar voltage noise and less current noise (for unequal impedances driving the positive and negative inputs), whether that matters depends on the impedance level.
Of those 3 (797, 1115, 1128) does anyone have an opinion on which is most perceptibly correct/accurate as a unity DAC output buffer?
Is there another IC opamp with "similar" noise specs that I should be considering? Perhaps the OPA1612?
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