AD7328
Rev. A | Page 10 of 36
–50
–100
10
1000
ANALOG INPUT FREQUENCY (kHz)
T
100
–55
–60
–65
–70
–75
–80
–85
–90
–95
±2.5V SE
±2.5V DIFF
±5V DIFF
±5V SE
±10V SE
±10V DIFF
0V TO +10V SE
V
CC
= 5V
V
DD
/V
= ±12V
T
A
= 25°C
f
S
= 1MSPS
0V TO +10V DIFF
0
Figure 10. THD vs. Analog Input Frequency for Single-Ended (SE) and True
Differential Mode (Diff) at 5 V V
CC
–50
–100
10
1000
ANALOG INPUT FREQUENCY (kHz)
T
100
–55
–60
–65
–70
–75
–80
–85
–90
–95
V
CC
= 3V
V
DD
/V
= ±12V
T
A
= 25°C
f
S
= 1MSPS
±2.5V SE
±2.5V DIFF
±5V DIFF
±5V SE
±10V DIFF
0V TO +10V SE
±10V SE
0V TO +10V DIFF
0
Figure 11. THD vs. Analog Input Frequency for Single-Ended (SE) and True
Differential Mode (Diff) at 3 V V
CC
80
50
10
1000
ANALOG INPUT FREQUENCY (kHz)
S
100
75
70
65
60
55
V
CC
= 5V
V
DD
/V
= ±12V
T
A
= 25°C
f
S
= 1MSPS
±2.5V SE
±2.5V DIFF
±5V DIFF
±10V DIFF
±5V SE
0V TO +10V SE
±10V SE
0V TO +10V DIFF
0
Figure 12. SINAD vs. Analog Input Frequency for Single-Ended (SE) and
Differential Mode (Diff) at 5 V V
CC
80
50
10
1000
ANALOG INPUT FREQUENCY (kHz)
S
100
75
70
65
60
55
V
CC
= 3V
V
DD
/V
= ±12V
T
A
= 25°C
f
S
= 1MSPS
±2.5V SE
±2.5V DIFF
±5V DIFF
±10V DIFF
0V TO +10V SE
±10V SE
±5V SE
0V TO +10V DIFF
0
Figure 13. SINAD vs. Analog Input Frequency for Single-Ended (SE) and
Differential Mode (Diff) at 3 V V
CC
–50
–95
0
600
0
FREQUENCY OF INPUT NOISE (kHz)
C
–55
–60
–65
–70
–75
–80
–85
–90
100
200
300
400
500
V
/V
= ±12V
SINGLE-ENDED MODE
f
S
= 1MSPS
T
= 25°C
50kHz ON SELECTED CHANNEL
V
CC
= 3V
V
CC
= 5V
Figure 14. Channel-to-Channel Isolation
10k
0
–2
CODE
N
9k
8k
7k
6k
5k
4k
3k
2k
1k
–1
0
1
2
0
228
9469
303
0
V
CC
= 5V
V
/V
= ±12V
RANGE = ±10V
10k SAMPLES
T
A
= 25°C
0
Figure 15. Histogram of Codes, True Differential Mode
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