Digital Drive

RE: 20-bit processing

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The mathematical operations don't really depict what takes place in A/D...... This was more an issue with early calculators, where limited bit depth in fractional calculations resulted in lost accuracy.

With a 20-bit calculation, the lower four bits might equal half the value of the 16-bit LSB, which in rounding would raise the LSB up a bit value..... But with a 16-bit A/D, if the analog signal below the LSB is at a level of half the LSB, it too could be rounded in the exact same manner.

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