ADC - Question about FS and BZ/UZ error - diyAudio
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Old 7th November 2007, 03:19 PM   #1
percy is offline percy  United States
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Join Date: Apr 2004
Location: CA
Default ADC - Question about FS and BZ/UZ error

I have a question about the Full Scale and Bipolar/Unipolar Zero error specifications for a typical ADC.

It seems like these errors "can be adjusted to zero by using an external potentiometer" as indicated in (3) (4) and (5) of the footnotes on Page 3 -> .

Are these specifications nothing but representative of the Input Offset Voltage of the comparator opamp used in the ADC ?

And by specifying that they can be adjusted to zero, does it mean this input offset voltage and be brought down to zero using outboard adjustable resistors ?

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