TYPICALCHARACTERISTICS (Cont.)
At TA = full specified temperature range, VS = +5V, differential input range = 2V to 3V for each input, sampling rate = 32MSPS, unless otherwise noted.
DYNAMIC PERFORMANCE vs CLOCK
DYNAMIC PERFORMANCE vs INPUT FREQUENCY
80
78
76
74
72
70
68
66
64
62
60
75
70
65
60
55
50
45
40
REF = 3V
IN = 3.5MHz
SFDR
THD
f
SFDR
SNR
SINAD
SNR
Power = –1dBFS
24
26
28
30
Clock (MHz)
32
34
36
1
10
100
Frequency (MHz)
SWEPT POWER (SFDR)
DYNAMIC PERFORMANCE vs INPUT FREQUENCY
SFDR
100
85
80
75
70
65
60
55
50
45
40
fIN = 10MHz
dBFS
90
80
70
60
50
40
30
20
10
0
THD
SNR
dBc
SINAD
Power = –6dBFS
–60
–50
–40
–30
–20
–10
0
1
10
100
Frequency (MHz)
Input Amplitude (dBFS)
INTEGRAL LINEARITY ERROR
(Differential, 2Vp-p)
DIFFERENTIAL LINEARITY ERROR
(Differential, 2Vp-p)
4
3
0.5
0.25
0
fIN = 10MHz
fIN = 10MHz
2
1
0
–1
–2
–3
–4
–0.25
–0.5
0
1024
2048
Code
3072
4096
0
1024
2048
Code
3072
4096
ADS2806
SBAS178B
7
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