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AD7667AST Datenblatt(PDF) 15 Page - Analog Devices

Teilenummer AD7667AST
Bauteilbeschribung  16-Bit 1 MSPS PulSAR Unipolar ADC with Reference
PDF  29 Pages
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Hersteller  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7667AST Datenblatt(HTML) 15 Page - Analog Devices

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AD7667
Rev. 0 | Page 14 of 28
12.5
13.0
13.5
14.0
14.5
15.0
87
88
89
90
92
–55
–35
–15
5
25
45
65
85
105
125
SNR
S/[N+D]
ENOB
TEMPERATURE (
°C)
91
Figure 17. SNR, S/[N+D], and ENOB vs. Temperature
–115
–110
–105
–100
–55
–35
–15
5
25
45
65
85
105
125
TEMPERATURE (
°C)
THD
SECOND
HARMONIC
THIRD
HARMONIC
Figure 18. THD and Harmonics vs. Temperature
0.001
0.01
0.1
10
100
1000
10000
100000
10
100
1k
10k
100k
1M
SAMPLING RATE (SPS)
1
AVDD, WARP/NORMAL
DVDD, IMPULSE
OVDD, ALL MODES
DVDD, WARP/NORMAL
AVDD, IMPULSE
PDREF = PDBUF = HIGH
Figure 19. Operating Current vs. Sample Rate
FULL-SCALE
ERROR
ZERO ERROR
–6
–5
–4
–3
–2
–1
0
1
2
3
4
5
6
–55
–35
–15
5
25
45
65
85
105
125
TEMPERATURE (
°C)
Figure 20. Zero Error, Full-Scale Error with Reference vs. Temperature
2.4966
2.4968
2.4970
2.4972
2.4974
2.4976
2.4978
2.4980
2.4982
2.4984
2.4986
2.4988
–40
–20
0
20
40
60
80
100
120
TEMPERATURE (°C)
Figure 21. Typical Reference Voltage Output vs. Temperature (3 Units)
0
5
10
15
20
25
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0
REFERENCE DRIFT (ppm/°C)
Figure 22. Reference Voltage Temperature Coefficient Distribution (102 Units)



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