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AD7651AST Datasheet(PDF) 14 Page - Analog Devices

Part # AD7651AST
Description  16-Bit 100 kSPS PulSAR Unipolar ADC with Reference
PDF  29 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7651AST Datasheet(HTML) 14 Page - Analog Devices

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AD7651
Rev. 0 | Page 13 of 28
FREQUENCY (kHz)
1
–120
–100
–90
–70
100
02964-0-031
1000
10
–80
120
100
20
40
60
80
SECOND
HARMONIC
SFDR
THIRD
HARMONIC
THD
110
90
30
50
70
–105
–95
–75
–85
–115
–110
Figure 11. THD, Harmonics, and SFDR vs. Frequency
INPUT LEVEL (dB)
–60
85
90
02964-0-032
0
–50
–40
–30
–20
–10
86
87
88
89
SNR
S/[N+D]
Figure 12. SNR and S/(N+D) vs. Input Level (Referred to Full Scale)
15.5
13.5
14.0
14.5
15.0
TEMPERATURE (dB)
–55
85
89
02964-0-033
125
–35
–15
5
25
45
86
87
88
SNR
65
105
85
S/[N+D]
Figure 13. SNR, S/(N+D), and ENOB vs. Temperature
TEMPERATURE (°C)
–55
–120
–100
02964-0-034
125
–35
–15
25
45
65
–115
–105
SECOND
HARMONIC
585
105
THIRD
HARMONIC
THD
–110
Figure 14. THD and Harmonics vs. Temperature
SAMPLE RATE (SPS)
02964-0-035
100
10000
100000
1
100
1000
10
1000
10000
0.001
0.1
0.01
DVDD
PDREF = PDBUF = HIGH
10
AVDD
OVDD
Figure 15. Operating Current vs. Sample Rate
TEMPERATURE (°C)
–55
6
02964-0-036
–35
5
25
45
65
–15
85
125
4
5
2
3
0
1
–4
–3
–6
–5
105
FULL SCALE
ZERO ERROR
–2
–1
Figure 16. Zero Error, Full Scale with Reference vs. Temperature



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