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AD7664 датащи(PDF) 14 Page - Analog Devices

номер детали AD7664
подробное описание детали  18-Bit, 2.5 LSB INL, 570 kSPS SAR ADC
PDF  28 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD7664 датащи(HTML) 14 Page - Analog Devices

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Rev. A | Page 14 of 28
–55
98
96
03085-0-018
99
97
–35
125
85
65
5
–15
100
SNR
ENOB
14.5
15.0
15.5
16.5
16.0
S/(N+D)
25
45
105
TEMPERATURE (
°C)
TEMPERATURE (
°C)
1000
–55
700
400
200
0
300
100
500
125
DVDD
–35
–155
25456585
105
AVDD
OVDD
03085-0-021
500
800
900
Figure 17. SNR, S/(N+D), and ENOB vs. Temperature
Figure 20. Power-Down Operating Currents vs. Temperature
TEMPERATURE (
°C)
–55
–15
–25
03085-0-022
–20
–35
125
85
65
5
–15
25
25
45
105
–5
5
–10
0
10
15
20
POSITIVE
FULL SCALE
NEGATIVE
FULL SCALE
ZERO ERROR
TEMPERATURE (
°C)
–55
–120
–140
03085-0-019
–110
–130
–35
125
85
65
5
–15
–100
25
45
105
THIRD
HARMONIC
SECOND
HARMONIC
THD
Figure 18. THD and Harmonics vs. Temperature
Figure 21. Zero Error Positive and Negative Full Scale vs. Temperature
SAMPLING RATE (SPS)
100000
0.001
1M
10000
1000
100
10
1
0.1
0.01
100k
10k
1k
100
1
AVDD
10
DVDD
OVDD
PDBUF HIGH
03085-0-020
CL (pF)
0
10
0
03085-0-024
200
150
50
50
100
30
20
40
OVDD = 2.7V @ 85°C
OVDD = 5V @ 85°C
OVDD = 5V @ 25°C
OVDD = 2.7V @ 25°C
Figure 19. Operating Current vs. Sampling Rate
Figure 22. Typical Delay vs. Load Capacitance CL



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