AD5220 Analog Devices, AD5220 Datasheet - Page 4

• Manufacturer Part Number: AD5220
• Description: 8-Bit Dual Nonvolatile Memory Digital Potentiometer
• Manufacturer: Analog Devices

AD5220
Figure 7. R-DNL Relative Resistance
Step Position Nonlinearity Error vs.
Code
Figure 4. Wiper to End Terminal
Resistance vs. Code
Figure 10. Potentiometer Divider
DNL Error vs. Code
–0.1
–0.2
–0.3
–0.4
–0.5
–0.1
–0.2
–0.3
–0.4
–0.5
100
0.5
0.4
0.3
0.2
0.1
0.0
0.5
0.4
0.3
0.2
0.1
0.0
75
50
25
0
0
0
0
50k
16
16
R
VERSION
–Typical Performance Characteristics
WB
10k
32
32
32
100k
CODE – Decimal
CODE – Decimal
CODE – Decimal
VERSION
48
48
VERSION
64
64
64
10k
100k
80
80
50k
VERSION
T
V
V
V
T
V
A
DD
A
B
96
96
96
A
DD
= +25 C
= +5.5V
= 0V
VERSION
VERSION
R
= +25 C
= +5.5V
WA
= +5.5V
112
112
128
128
128
Figure 5. Resistance Linearity vs.
Conduction Current
Figure 8. R-INL Resistance Non-
linearity Error vs. Supply Voltage
Figure 11. Potentiometer Divider
INL Error vs. Supply Voltage
–0.1
–0.2
–0.3
–0.4
–0.5
0.600
0.525
0.450
0.375
0.300
0.255
0.150
0.075
0.000
0.5
0.4
0.3
0.2
0.1
0.0
6
5
4
3
2
1
0
0
0
2.00 2.50
V
R
16
CONDUCTION CURRENT, I
DD
AB
20
100k
= 5.5V
= 50k
7F
32
H
3.00 3.50 4.00 4.50 5.00 5.50
SUPPLY VOLTAGE – V
40
40
CODE – Decimal
VERSION
H
48
–4–
20
H
60
64
10
08
H
10k
H
80
50k
80
CODE = 40
R
V
A
VERSION
AB
04
T
V
WB
96
A
= V
DD
VERSION
H
= 50k
= +25 C
100
– A
02
= +5.5V
DD
112
H
01
H
H
128
120
6.00
Figure 6. Wiper Contact Resistance
Figure 9. Potentiometer Divider INL
Error vs. Code
Figure 12. Nominal Resistance vs.
Temperature
–0.1
–0.2
–0.3
–0.4
–0.5
100
0.5
0.4
0.3
0.2
0.1
0.0
80
60
40
20
48
40
32
24
16
0
8
0
–40
0
20
T
V
V
V
A
DD
A
B
16
= +25 C
= +5.5V
= 0V
–15
= +5.5V
10k
28
WIPER RESISTANCE –
32
TEMPERATURE – C
100k
10k
VERSION
50k
CODE – Decimal
48
36
10
VERSION
VERSION
VERSION
100k
64
50k
44
35
80
SS = 300 UNITS
V
T
VERSION
DD
A
VERSION
= +25 C
= +2.7V
96
52
60
112
REV. 0
60
128
85