CS5101A CS5102A
30
28
26
24
22
20
18
16
14
12
10
8
# of Missing Codes: 0
25248
Total # of
Codes Analyzed: 65534
15570
15499
6
3959
3708
4
2
481
714
0
1
16
115
175 41
5
2
0
-0.65 -0.55 -0.45 -0.35 -0.25 -0.15 -0.05 0 0.05 0.15 0.25 0.35 0.45 0.55 0.65
DNL Error in LSB
Figure 15. CS5101A DNL Error Distribution
35
31047
# of Missing Codes: 0
30
25
20
15
10
5
Total # of
Codes Analyzed: 65534
16047
14592
1775
1892
0
3
86
88
4
0
0
-0.45
-0.35
-0.25
-0.15
-0.05
0
0.05
0.15
0.25
0.35
0.45
DNL Error in LSB
Figure 16. CS5102A DNL Error Distribution
code with more or less occurrences than average
will appear as a DNL of greater or less than zero
LSB. A missing code has zero occurrences, and
will appear as a DNL of -1 LSB.
tolerance than the DNL plots in Figures 11 and
13 appear to indicate.
FFT Tests and Windowing
Figures 15 and 16 illustrate the code width distri-
bution of the DNL plots shown in Figures 11 and
13 respectively. The DNL error distribution plots
indicate that the CS5101A and CS5102A cali-
brate the majority of their codes to tighter
In the factory, the CS5101A and CS5102A are
tested using Fast Fourier Transform (FFT) tech-
niques to analyze the converters’ dynamic
performance. A pure sinewave is applied to the
device, and a "time record" of 1024 samples is
DS45F2
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