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AD7452
Rev. B | Page 10 of 28
AD7452–TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, fS = 555 kSPS, fSCLK = 10 MHz, unless otherwise noted.
FREQUENCY (kHz)
10
100
S
INAD
(dB)
65
60
55
277
70
75
VDD = 4.75V
VDD = 3.6V
VDD = 2.7V
VDD = 5.25V
03154-A
-005
Figure 5. SINAD vs. Analog Input Frequency for Various Supply Voltages
FREQUENCY (kHz)
10
100
CMRR
(dB)
–100
10000
0
1000
VDD = 3V
VDD = 5V
–90
–80
–70
–60
–50
–40
–30
–20
–10
03154-A
-006
Figure 6. CMRR vs. Frequency for VDD = 5 V and 3 V
SUPPLY RIPPLE FREQUENCY (kHz)
0
100
200
300
400
500
P
S
RR
(dB)
–120
900
1000
0
VDD= 5V
VDD= 3V
–100
–80
–60
–40
–20
100mV p-p SINE WAVE ON VDD
NO DECOUPLING ON VDD
600
700
800
03154-A
-007
Figure 7. PSRR vs. Supply Ripple Frequency without Supply Decoupling
FREQUENCY (kHz)
0
100
200
S
NR
(dB)
–100
–140
277
–20
0
–120
–40
–60
–80
8192 POINT FFT
fSAMPLE = 555kSPS
fIN = 100kSPS
SINAD = 71.7dB
THD = –82dB
SFDR = –83dB
03154-A
-008
Figure 8. Dynamic Performance with VDD = 5 V
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
1.0
DNL
E
RROR
(LS
B
)
CODE
1024
0
2048
3072
4096
03154-A
-009
Figure 9. Typical DNL for VDD = 5 V
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
1.0
INL
E
RROR
(LS
B
)
CODE
1024
0
2048
3072
4096
03154-A
-010
Figure 10. Typical INL for VDD = 5 V