[Lowfer] Reference Filter Increases 32-Bit ADC SNR by 6dB

[Michael Sapp]

Hi All: Found this  design note in Nov '17 Electronic Design, it is available 

in PDF form online, Google search "Linear Technology DN568"  and should come up

as first search return hit.  Makes sense that the ADC dynamic range performance is only as good as the reference voltage

provided.  Makes me wonder if it is worth opening up an $11 SYBA 24bit USB sound card dongle to investigate

the quality of it's reference voltage.  Perhaps the 2^8 difference in bits and total dynamic range vs 32 bit not worth the effort ?

Something to think about...

73 Mike wa3tts