Datasheet

Data Sheet AD7626
Rev. B | Page 13 of 28
41
30,206
201,614
30,250
33
0
50,000
100,000
150,000
200,000
250,000
FEC8 FEC9 FECA FECB FECC FECD FECE
COUNT
CODE (HEX)
0
0
262,144 SAMPLES
STD DEVIATION = 0.4814
07648-024
Figure 23. Histogram of 262,144 Conversions of a DC Input
at the Code Center (External Reference)
2130
128,084
129,601
2329
0
20,000
40,000
60,000
80,000
100,000
120,000
140,000
FEC6 FEC7 FEC8 FEC9 FECA FECB
COUNT
CODE (HEX)
0 0
262,144 SAMPLES
STD DEVIATION = 0.5329
07648-023
Figure 24. Histogram of 262,144 Conversions of a DC Input
at the Code Transition
0.30
–0.30
–0.25
–0.20
–0.15
–0.10
–0.05
0
0.05
0.10
0.15
0.20
0.25
0 16,384 32,768 49,152 65,536
DNL (LSB)
CODE
07648-112
Figure 25. Differential Nonlinearity vs. Code (25ºC)
0.8
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0 16,384 32,768 49,152 65,536
INL (LSB)
CODE
+85°C
+25°C
–40°C
07648-115
Figure 26. Integral Nonlinearity vs. Code vs. Temperature