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AD5122A Datasheet(PDF) 14 Page - Analog Devices

Part No. AD5122A
Description  Quad Channel, 128-/256-Position, I2C Nonvolatile Digital Potentiometer
Download  28 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5122A Datasheet(HTML) 14 Page - Analog Devices

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AD5123/AD5143
Data Sheet
Rev. A | Page 14 of 28
–0.15
–0.10
–0.05
0
0.05
0.10
0.15
0
50
100
CODE (Decimal)
10k
Ω, –40°C
10k
Ω, +25°C
10k
Ω, +125°C
100k
Ω, –40°C
100k
Ω, +25°C
100k
Ω, +125°C
Figure 11. INL vs. Code (AD5123)
–50
0
50
100
150
200
250
300
350
400
450
100k
10k
AD5123
AD5143
CODE (Decimal)
0
50
100
150
200
255
0
25
50
75
100
127
Figure 12. Potentiometer Mode Temperature Coefficient ((ΔVW/VW)/ΔT × 106) vs.
Code
0
100
200
300
400
500
600
700
800
TEMPERATURE (°C)
IDD, VDD = 2.3V
IDD, VDD = 3.3V
IDD, VDD = 5V
–40
10
60
125
110
VSS = GND
Figure 13. Supply Current vs. Temperature
–0.14
–0.12
–0.10
–0.08
–0.06
–0.04
–0.02
0
0.02
0.04
0.06
0
50
100
CODE (Decimal)
10k
Ω, –40°C
10k
Ω, +25°C
10k
Ω, +125°C
100k
Ω, –40°C
100k
Ω, +25°C
100k
Ω, +125°C
Figure 14. DNL vs. Code (AD5123)
–50
0
50
100
150
200
250
300
350
400
450
10
kΩ
100
kΩ
AD5122A
AD5142A
CODE (Decimal)
0
50
100
150
200
255
0
25
50
75
100
127
Figure 15. Rheostat Mode Temperature Coefficient ((ΔRWB/RWB)/ΔT × 106)
vs. Code
0
200
400
600
800
1000
1200
0
1
2
3
4
5
INPUT VOLTAGE (V)
VDD = 2.3V
VDD = 3.3V
VDD = 5V
VDD = 5.5V
Figure 16. IDD Current vs. Digital Input Voltage


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