AD7626 Analog Devices, AD7626 Datasheet - Page 13

• Manufacturer Part Number: AD7626
• Description: 16-Bit, 10 MSPS, PulSAR Differential ADC
• Manufacturer: Analog Devices

Specifications of AD7626

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 10MSPS
• Interface: LVDS,Ser
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p
• Adc Architecture: SAR
• Pkg Type: CSP

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