AD7685(2014) 데이터 시트보기 (PDF) - Analog Devices
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AD7685 Datasheet PDF : 28 Pages
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Data Sheet
100
95
90
85
17
SNR 16
SINAD
15
ENOB
14
80
13
2.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
REFERENCE VOLTAGE (V)
Figure 13. SNR, SINAD, and ENOB vs. Reference Voltage
100
95
90
85
80
75
70
0
VREF = 5V, –10dB
VREF = 5V, –1dB
VREF = 2.5V, –1dB
50
100
150
200
FREQUENCY (kHz)
Figure 14. SINAD vs. Frequency
100
95
VREF = 5V
90
VREF = 2.5V
85
80
75
70
–55 –35 –15 5
25 45 65 85
TEMPERATURE (°C)
Figure 15. SNR vs. Temperature
105 125
AD7685
–90
–95
–100
–105
–110
THD
–115
–120
SFDR
–125
–130
2.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
REFERENCE VOLTAGE (V)
Figure 16. THD, SFDR vs. Reference Voltage
–60
–70
–80
–90
–100
–110
–120
0
VREF = 2.5V, –1dB
VREF = 5V, –1dB
VREF = 5V, –10dB
50
100
150
200
FREQUENCY (kHz)
Figure 17. THD vs. Frequency
–90
–100
–110
–120
VREF = 2.5V
VREF = 5V
–130
–55 –35 –15 5
25 45 65 85
TEMPERATURE (°C)
Figure 18. THD vs. Temperature
105 125
Rev. D | Page 11 of 28
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