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Cosmos APU a notch+LNA $70 to outperform APx555b for $30,000

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KSTR

KSTR

Member
Joined 2007
capslock said:
We've had the discussion about how an integrated DAC / ADC Cosmos combo with a common clock would be great for doing correlated analysis. How about a common supply voltage and above all, a common voltage reference? I haven't checked what kind of references ES9822 and ES9039S take, but if there was a way to use a common reference, this should greatly enhance LF S/N for analysis of analog circuits.
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9822 needs 4.5V, 9039q2m 3.3V. But the 3.3V can be derived from the 4.5V with a buffered/filtered resistor divider so that they have the same long-term drift and almost the same 1/f-noise. This will reduce loop-back delta (DAC vs ADC) gain drifts and thus will null better in compares.
A common clock is, of course, one most important thing, so that one can use synced averaging and can do compares with DeltaWave straight away.
 
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