Datasheet

Data Sheet AD7952
Rev. A | Page 13 of 32
–160
–140
–120
–100
–80
–60
–40
–20
0
0 100 200 400300 500
FREQUENCY (kHz)
AMPLITUDE (dB OF FULL SCALE)
f
S
= 1000kSPS
f
IN
= 19.94kHz
SNR = 85.4dB
THD = –107dB
SFDR = 116dB
SINAD = 85.4dB
06589-011
Figure 11. FFT 20 kHz
78
80
82
84
86
88
1 10 100
13.5
13.7
13.9
14.1
14.3
14.5
ENOB (Bits)
SNR
SINAD
ENOB
FREQUENCY (kHz)
SNR, SINAD (dB)
06589-012
Figure 12. SNR, SINAD, and ENOB vs. Frequency
84.0
84.5
85.0
85.5
86.0
–55 –35 –15 5 25 45 65 85 105 125
0V TO 5V
0V TO 10V
±5V
±10V
TEMPERATURE (°C)
SNR (dB)
06589-013
Figure 13. SNR vs. Temperature
85.0
85.5
86.0
86.5
–60 –50 –40 –30 –20 –10 0
INPUT LEVEL (dB)
SNR, SINAD REFERRED TO FULL SCALE (dB)
SNR
SINAD
06589-014
Figure 14. SNR and SINAD vs. Input Level (Referred to Full Scale)
–130
–120
–110
–100
–90
–80
–
70
110100
60
70
80
90
100
110
120
SFDR (dB)
SFDR
THD
SECOND
HARMONIC
THD, HARMONICS (dB)
FREQUENCY (kHz)
THIRD
HARMONIC
06589-015
Figure 15. THD, Harmonics, and SFDR vs. Frequency
84.0
84.5
85.0
85.5
86.0
TEMPERATURE (°C)
SINAD (dB)
–55 –35 –15 5 25 45 65 85 105 125
0V TO 5V
0V TO 10V
±5V
±10V
06589-016
Figure 16. SINAD vs. Temperature