Linear Technology DC2222A Demo Manual page 5

Dc590 or Dc2026 Quick start proceDure
loaded automatically. Click the Collect button (See Figure 5)
to begin reading the ADC.
Pressing the Configuration button will bring up a Con-
figurations Options menu similar to the one shown for
PScope except that only the filtered output is available
and there are no options for verify and distributed read.
DEMO MANUAL DC2222A
Increasing DF will reduce the noise as shown in the histo-
gram of Figure 6. The noise will be reduced by the square
root of the number of times the number of samples is
increased. In practice, as input voltage is increased refer-
ence noise will eventually limit the noise improvement.
Figure 5. QuikEval Histogram with DF = 256
Figure 6. QuikEval Histogram with DF = 1024
dc2222af
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