
AD9974
Rev. A | Page 11 of 52
TYPICAL PERFORMANCE CHARACTERISTICS
05
95
5-
0
05
250
0
50
100
150
200
20
25
30
35
40
45
50
55
60
65
PO
W
E
R
(
m
W)
SAMPLE RATE (MHz)
1.8V SUPPLIES
3.3V SUPPLIES
TOTAL POWER
Figure 4. Power vs. Sample Rate
05
95
5-
0
06
180
160
140
120
100
80
60
40
20
0
5
10
15
20
25
30
35
40
45
R
M
S
O
U
T
P
U
T
N
O
IS
E
(L
SB
)
VGA GAIN (dB)
Figure 5. RMS Output Noise vs. VGA Gain
05
95
5-
0
07
LS
B
ADC OUTPUT CODE
0
1.0
–1.0
0.8
0.6
0.4
0.2
–0.2
–0.4
–0.6
–0.8
2k
4k
6k
8k
10k
12k
14k
16k
Figure 6. Differential Nonlinearity
05
95
5-
0
08
LS
B
ADC OUTPUT CODE
0
10
–8
2k
4k
6k
8k
10k
12k
14k
16k
8
6
4
2
0
–2
–4
–6
Figure 7. Integral Nonlinearity
05
95
5-
0
09
IN
L
M
IS
M
A
T
C
H
(
%
)
ADC OUTPUT CODE
1.0
–1.0
1k
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
3k
5k
7k
9k
11k
13k
15k
Figure 8. Linearity Mismatch vs. ADC Output Code