AD5259 查看數據表（PDF） - Analog Devices
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AD5259 Datasheet PDF : 24 Pages
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AD5259
400
100kΩ
300
50kΩ
200
10kΩ
100
0
–100
–200
–300
5kΩ
–400
–500
–600
0
32
64
96 128 160 192 224 256
CODE (Decimal)
Figure 18. Rheostat Mode Tempco (ΔRAB x 106)/(RAB x ΔT) vs. Code
70
60
50
40
30
20
10
0
–10
–20
–30
–40
0
10kΩ
100kΩ
50kΩ
5kΩ
32
64
96 128 160 192 224 256
CODE (Decimal)
Figure 19. Potentiometer Mode Tempco (ΔVW x 106)/(VW x ΔT) vs. Code
350
300
250
RWB @ VDD = 2.7V
200
150
100
RWB @ VDD = 5.5V
50
0
–40
–20
0
20
40
60
80
TEMPERATURE (°C)
Figure 20. RWB vs. Temperature
120
100kΩ Rt @ VDD = 5.5V
100
80
50kΩ Rt @ VDD = 5.5V
60
40
10kΩ Rt @ VDD = 5.5V
5kΩ Rt @ VDD = 5.5V
20
0
–40
–20
0
20
40
60
80
TEMPERATURE (°C)
Figure 21. Total Resistance vs. Temperature
0
80H
–6
–12
40H
20H
–18
10H
–24
08H
–30
04H
–36
02H
–42
01H
–48
–54
–60
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 22. Gain vs. Frequency vs. Code, RAB = 5 kΩ
0
–6
–12
–18
–24
–30
–36
–42
–48
–54
–60
1k
80H
40H
20H
10H
08H
04H
02H
01H
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 23. Gain vs. Frequency vs. Code, RAB = 10 kΩ
Rev. A | Page 10 of 24
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