Datasheet

Data Sheet ADAS3022
Rev. B | Page 15 of 40
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
0 100 200 300 400 500
AMPLITUDE (dBFS)
FREQUENCY (kHz)
GAIN = 6.4
f
S
= 1000kSPS
f
IN
= 10.1kHz
SNR = 85.7dB
SINAD = 85.6dB
THD = –101dB
SFDR = 103dB
10516-127
Figure 24. 10 kHz FFT, PGIA Gain = 6.4
10516-303
100
95
90
85
80
75
70
1 100010010
SNR (dB)
FREQUENCY (kHz)
GAIN = 0.4, –0.5dBFS
GAIN = 0.8, –0.5dBFS
GAIN = 1.6, –0.5dBFS
GAIN = 3.2, –0.5dBFS
GAIN = 0.4, –10dBFS
GAIN = 0.8, –10dBFS
GAIN = 1.6, –10dBFS
GAIN = 3.2, –10dBFS
Figure 25. SNR vs. Frequency
10516-302
100
95
90
85
80
75
70
65
60
55
50
1 100010010
SINAD (dB)
FREQUENCY (kHz)
GAIN = 0.4, –0.5dBFS
GAIN = 0.8, –0.5dBFS
GAIN = 1.6, –0.5dBFS
GAIN = 3.2, –0.5dBFS
GAIN = 0.4, –10dBFS
GAIN = 0.8, –10dBFS
GAIN = 1.6, –10dBFS
GAIN = 3.2, –10dBFS
Figure 26. SINAD vs. Frequency
10516-304
–55
–60
–65
–70
–75
–80
–85
–90
–95
–100
–105
–110
–115
–120
–125
1 100010010
THD (dB)
FREQUENCY (kHz)
GAIN = 0.4, –0.5dBFS
GAIN = 0.8, –0.5dBFS
GAIN = 1.6, –0.5dBFS
GAIN = 3.2, –0.5dBFS
GAIN = 0.4, –10dBFS
GAIN = 0.8, –10dBFS
GAIN = 1.6, –10dBFS
GAIN = 3.2, –10dBFS
Figure 27. THD vs. Frequency
10516-300
–60
–70
–80
–90
–100
–110
–120
–130
–140
0 20 40 60
80 100 120 140 160 180 200
CROSSTALK (dB)
FREQUENCY (kHz)
INTERNAL REFERENCE
CHANNEL 4 TO COM, SEQUENCER DISABLED
VIN = –0.5dBFS ON CHANNELS 0 TO 3, 5 TO 7
f
S
= 1000kSPS
Figure 28. Crosstalk vs. Frequency
60
70
80
90
100
110
120
130
1 10 100 1k 10k 100k
CMRR (dB)
FREQUENCY (Hz)
COMMON-MODE AMPLITUDE = 20.48V p-p
INTERNAL REFERENCE
f
S
= 1000kSPS
GAIN = 0.16
GAIN = 0.20
GAIN = 0.40
GAIN = 0.80
GAIN = 1.60
GAIN = 3.20
GAIN = 6.40
10516-139
Figure 29. CMRR vs. Frequency