AD7691(Rev0) 데이터 시트보기 (PDF) - Analog Devices
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AD7691 Datasheet PDF : 28 Pages
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104
18
SNR
102
100
SINAD 17
98
96
ENOB
16
94
92
15
90
88
86
14
2.3 2.6 2.9 3.2 3.5 3.8 4.1 4.4 4.7 5.0 5.3
REFERENCE VOLTAGE (V)
Figure 13. SNR, SINAD, and ENOB vs. Reference Voltage
AD7691
–105
–110
–115
–120
THD
–125
–130
SFDR
–135
2.3 2.6 2.9 3.2 3.5 3.8 4.1 4.4 4.7 5.0 5.3
REFERENCE VOLTAGE (V)
Figure 16. THD, SFDR vs. Reference Voltage
105
VREF = 5V
100
VREF = 2.5V
95
90
85
80
–55 –35 –15 5
25 45 65 85
TEMPERATURE (°C)
Figure 14. SNR vs. Temperature
105 125
–90
–100
–110
–120
VREF = 5V
VREF = 2.5V
–130
–55 –35 –15 5
25 45 65 85
TEMPERATURE (°C)
Figure 17. THD vs. Temperature
105 125
105
100
95
90
85
80
75
70
0
VREF = 5V, –10dB
VREF = 5V, –1dB
VREF = 2.5V, –1dB
VREF = 2.5V, –10dB
25
50
75
100
125
FREQUENCY (kHz)
Figure 15. SINAD vs. Frequency
–60
–70
–80
–90
–100
–110
–120
–130
0
Rev. 0 | Page 11 of 28
VREF = 2.5V, –1dB
VREF = 5V, –1dB
VREF = 5V, –10dB
VREF = 2.5V, –10dB
25
50
75
100
125
FREQUENCY (kHz)
Figure 18. THD vs. Frequency
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