AD7441BRTZ-R2 データシートの表示（PDF） - Analog Devices
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AD7441BRTZ-R2 Datasheet PDF : 24 Pages
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AD7441/AD7451
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, fS = 1 MSPS, fSCLK = 18 MHz, VDD = 2.7 V to 5.25 V, VREF = 2.5 V, unless otherwise noted.
75
VDD = 5.25V
70
VDD = 4.75V
VDD = 3.6V
65
VDD = 2.7V
60
55
10
100
1000
FREQUENCY (kHz)
Figure 7. SINAD vs. Analog Input Frequency for the AD7451 for
Various Supply Voltages
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
1024
2048
CODE
3072
4096
Figure 10. Typical DNL for the AD7451 for VDD = 5 V
0
100mV p-p SINE WAVE ON VDD
NO DECOUPLING ON VDD
–20
–40
–60
VDD = 3V
–80
VDD = 5V
–100
–120
0 100 200 300 400 500 600 700 800 900 1000
SUPPLY RIPPLE FREQUENCY (kHz)
Figure 8. PSRR vs. Supply Ripple Frequency Without Supply Decoupling
0
8192 POINT FFT
fSAMPLE = 1MSPS
–20
fIN = 100kSPS
SINAD = 71dB
THD = –82dB
–40
SFDR = –83dB
–60
–80
–100
–120
–140
0
100
200
300
400
500
FREQUENCY (kHz)
Figure 9. AD7451 Dynamic Performance 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
0
1024
2048
CODE
3072
4096
Figure 11. Typical INL for the AD7451 for VDD = 5 V
10000
9000
9949
CODES
8000
7000
6000
5000
4000
3000
2000
1000
0
2046
27 CODES
24 CODES
2047
2048
2049
CODES
2050
2051
Figure 12. Histogram of 10,000 Conversions of a DC Input for the AD7451
Rev. D | Page 10 of 24
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