AD8400AN10 Analog Devices, AD8400AN10 Datasheet - Page 8

• Manufacturer Part Number: AD8400AN10
• Description: 1-/2-/4-Channel Digital Potentiometers
• Manufacturer: Analog Devices

AD8400/AD8402/AD8403–Typical Performance Characteristics
Figure 2. Wiper to End Terminal
Resistance vs. Code
Figure 5. Resistance Step Position
Nonlinearity Error vs. Code
Figure 8. Potentiometer Divider
Nonlinearity Error vs. Code
–0.5
–0.5
10
0.5
0.5
–1
–1
8
6
4
2
0
1
0
1
0
0
0
0
32
32
32
DIGITAL INPUT CODE – Decimal
DIGITAL INPUT CODE – Decimal
R
64
WB
64
64
T
T
A
V
CODE – Decimal
A
DD
96
= +25 C
96
96
= –40 C
= +3V OR +5V
128 160 192 224
128 160 192 224
T
128 160 192 224
T
A
A
= +85 C
= –40 C
T
T
A
A
= +25 C
= +85 C
V
V
DD
R
DD
WA
= +5V
= +5V
256
256
256
Figure 3. Resistance Linearity vs.
Conduction Current
Figure 6. 10 k
Resistance Histogram
Figure 9. 50 k
Resistance Histogram
60
48
36
24
12
60
48
36
24
12
5
4
3
2
1
0
0
0
0
40.0 42.5
35 37
SS = 1205 UNITS
V
T
SS = 184 UNITS
V
T
DD
A
A
DD
= +25 C
= +25 C
1
= 4.5V
80
= 4.5V
45.0 47.5 50.0 52.5 55.0 57.5 60.0 62.5
39
H
40
WIPER RESISTANCE –
WIPER RESISTANCE –
H
2
I
WA
41 43
FF
–8–
H
CURRENT – mA
20
Wiper-Contact-
Wiper-Contact-
3
H
05
45
CODE = 10
H
4
47
49 51
T
5
V
A
DD
H
= +25 C
= +5V
53
6
65.0
55
7
Figure 10.
Mode Tempco
Figure 7. Nominal Resistance vs.
Temperature
Figure 4. 100 k Wiper-Contact-
Resistance Histogram
–10
10
8
6
4
2
0
70
60
50
40
30
20
10
60
48
36
24
12
–75 –50
0
0
0
40.0 42.5
SS = 184 UNITS
V
T
DD
A
32
= +25 C
= 4.5V
V
–25
45.0 47.5 50.0 52.5 55.0 57.5 60.0 62.5
64
WIPER RESISTANCE –
WB
TEMPERATURE – C
CODE – DECIMAL
/ T Potentiometer
0
96
R
R
CODE = 80
25
128
AB
WB
(END-TO-END)
(WIPER-TO-END)
V
T
V
V
50
A
DD
A
B
160
= –40 C/+85 C
= 2.00V
= 0V
= +5V
H
75
192 224 256
REV. B
100
65.0
125