Datasheet

AD7452
Rev. B | Page 10 of 28
AD7452–TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, f
S
= 555 kSPS, f
SCLK
= 10 MHz, unless otherwise noted.
FREQUENCY (kHz)
10 100
SINAD (dB)
65
60
55
277
70
75
V
DD
= 4.75V
V
DD
= 3.6V
V
DD
= 2.7V
V
DD
= 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
V
DD
= 3V
V
DD
= 5V
–90
–80
–70
–60
–50
–40
–30
–20
–10
03154-A-006
Figure 6. CMRR vs. Frequency for V
DD
= 5 V and 3 V
SUPPLY RIPPLE FREQUENCY (kHz)
0 100 200 300 400 500
PSRR (dB)
–120
900 1000
0
V
DD
= 5V
V
DD
= 3V
–100
–80
–60
–40
–20
100mV p-p SINE WAVE ON V
DD
NO DECOUPLING ON V
DD
600 700 800
03154-A-007
Figure 7. PSRR vs. Supply Ripple Frequency without Supply Decoupling
FREQUENCY (kHz)
0 100 200
SNR (dB)
–100
–140
277
–20
0
–120
–40
–60
–80
8192 POINT FFT
f
SAMPLE
= 555kSPS
f
IN
= 100kSPS
SINAD = 71.7dB
THD = –82dB
SFDR = –83dB
03154-A-008
Figure 8. Dynamic Performance with V
DD
= 5 V
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
1.0
DNL ERROR (LSB)
CODE
10240 2048 3072 4096
03154-A-009
Figure 9. Typical DNL for V
DD
= 5 V
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
1.0
INL ERROR (LSB)
CODE
10240 2048 3072 4096
03154-A-010
Figure 10. Typical INL for V
DD
= 5 V