Datasheet

AD7690
Rev. B | Page 10 of 24
104
92
2.3 5.5
REFERENCE VOLTAGE (V)
SNR, SINAD (dB)
102
100
98
96
94
20
14
ENOB (Bits)
19
18
17
16
15
2.7 3.1 3.5 3.9 4.3 4.7 5.1
ENOB
SINAD
SNR
05792-029
Figure 13. SNR, SINAD, and ENOB vs. Reference Voltage
103
95
–55 125
TEMPERATURE (°C)
SNR (dB)
102
101
100
99
98
97
96
–35–155 25456585105
V
REF
= 5V
05792-030
Figure 14. SNR vs. Temperature
105
65
0 200
FREQUENCY (kHz)
SINAD (dB)
05792-043
50 100 150
V
REF
= 5V, –10dB
100
95
90
85
80
75
70
V
REF
= 5V, –1dB
Figure 15. SINAD vs. Frequency
–
100
–125
2.3 5.5
REFERENCE VOLTAGE (V)
THD (dB)
135
110
SFDR (dB)
2.7 3.1 3.5 3.9 4.3 4.7 5.1
–105
–110
–115
–120
130
125
120
115
THD
SFDR
05792-031
Figure 16. THD, SFDR vs. Reference Voltage
–
90
–130
–55 125
TEMPERATURE (°C)
THD (dB)
–35–155 25456585105
V
REF
= 5V
–100
–110
–120
05792-032
Figure 17. THD vs. Temperature
–
60
–130
0 200
FREQUENCY (kHz)
THD (dB)
05792-044
–70
–80
–90
–100
–110
–120
50 100 150
V
REF
= 5V, –1dB
V
REF
= 5V, –10dB
Figure 18. THD vs. Frequency