Datasheet

AD7693
Rev. A | Page 10 of 24
SNR, SINAD (dB)
ENOB (Bits)
REFERENCE VOLTAGE (V)
90
91
92
93
94
95
96
97
98
99
100
2.0 2.53.03.54.04.55.0 5.5
15.0
15.5
16.0
16.5
17.0
17.5
18.0
18.5
19.0
19.5
20.0
ENOB
06394-013
SNR, SINAD
Figure 13. SNR, SINAD, and ENOB vs. Reference Voltage
SNR, SINAD (dB)
ENOB (Bits)
TEMPERATURE (°C)
90
91
92
93
94
95
96
97
98
99
100
15.0
15.5
16.0
16.5
17.0
17.5
18.0
18.5
19.0
19.5
20.0
–55 –35 –15 5 25 45 65 85 105 125
ENOB
SNR, SINAD
06394-014
Figure 14. SNR, SINAD, and ENOB vs. Temperature
SNR, SINAD (dB)
FREQUENCY (kHz)
0 50 100 150 200
80
82
84
86
88
90
92
94
96
98
100
V
IN
= –10dBFS
V
IN
= –1dBFS
06394-015
Figure 15. SINAD vs. Frequency
THD (dB)
SFDR (dB)
REFERENCE VOLTAGE (V)
80
85
90
95
100
105
110
115
120
125
130
2.0 5.5
SFDR
THD
–130
–125
–120
–115
–110
–105
–100
–95
–90
–85
–
80
06394-016
2.53.03.54.04.55.0
Figure 16. THD, SFDR vs. Reference Voltage
THD (dB)
SFDR (dB)
TEMPERATURE (°C)
–130
–125
–120
–115
–110
–105
–
100
–55 –35 –15 5 25 45 65 85 105 125
100
105
110
115
120
125
130
SFDR
THD
V
DD
= 5V
06394-017
Figure 17. THD, SFDR vs. Temperature
THD (dB)
FREQUENCY (kHz)
–130
–125
–120
–115
–110
–105
–100
–95
–90
–85
–
80
0 50 100 150 200
V
IN
= –10dBFS
V
IN
= –1dBFS
06394-018
Figure 18. THD vs. Frequency