AD5444 查看數據表（PDF） - Analog Devices
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AD5444 Datasheet PDF : 28 Pages
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AD5444/AD5446
2.5
TA = 25°C
2.0
1.5
VDD = 5V
1.0
0.5
VDD = 3V
0
0
1
2
3
4
5
INPUT VOLTAGE (V)
Figure 18. Supply Current vs. Logic Input Voltage
0.7
ALL 1s
0.6
ALL 0s
0.5
0.4
VDD = 5V
0.3
0.2
VDD = 3V
0.1
0
–40 –20 0
20 40 60 80 100 120
TEMPERATURE (°C)
Figure 19. Supply Current vs. Temperature
6
TA = 25°C
AD5444
LOADING 0101 0101 0101
5
4
3
VDD = 5V
2
1
VDD = 3V
0
1
10
100
1k
10k 100k
1M
10M
FREQUENCY (Hz)
Figure 20. Supply Current vs. Update Rate
1.8
TA = 25°C
1.6
1.4
VIH
VIL
1.2
1.0
0.8
0.6
0.4
0.2
0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
Figure 21. Threshold Voltage vs. Supply Voltage
10
0 ALL ON
DB13
–10
DB12
–20
DB11
DB10
TA = 25°C
LOADING
ZS TO FS
–30
–40
–50
–60
–70
–80
10k
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
100k
VDD = 5V
VREF = ±3.5V
CCOMP = 1.8pF
AD8038 AMPLIFIER
1M
10M
FREQUENCY (Hz)
100M
Figure 22. Reference Multiplying Bandwidth vs. Frequency and Code
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8 TA = 25°C
VDD = 5V
–1.0 VREF = ±3.5V
CCOMP = 1.8pF
AD8038 AMPLIFIER
–1.2
10k
100k
1M
10M
FREQUENCY (Hz)
100M
Figure 23. Reference Multiplying Bandwidth vs. Frequency—All 1s Loaded
Rev. C | Page 10 of 28
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