MCP4431 Microchip Technology Inc., MCP4431 Datasheet - Page 30

• Manufacturer Part Number: MCP4431
• Description: 7/8-bit Volatile Quad Digital Pot With I 2c Interface
• Manufacturer: Microchip Technology Inc.

MCP443X/5X
Note: Unless otherwise indicated, T
FIGURE 2-56:
from Average R
Wiper Setting and Temperature
(V
FIGURE 2-57:
from Average R
Wiper Setting and Temperature
(V
FIGURE 2-58:
from Average R
Wiper Setting and Temperature
(V
DS22267A-page 30
DD
DD
DD
Note:
-1.00%
-1.00%
-2.00%
-0.50%
-1.50%
= 5.5V, I
= 3.0V, I
= 1.8V, I
7.00%
6.00%
5.00%
4.00%
3.00%
2.00%
1.00%
0.00%
4.00%
3.00%
2.00%
1.00%
0.00%
3.50%
2.50%
1.50%
0.50%
0
0
0
See
information of R
characteristics for V
W
W
W
32
32
32
BW
BW
BW
= 90 µA).
= 48 µA).
= 30 µA).
Appendix
64
64
64
(R
(R
(R
50 k
50 k
50 k
BW0
BW0
BW0
96
96
96
Wiper Code
Wiper Code
Wiper Code



-R
-R
-R
128
128
128
W
– Worst Case R
– Worst Case R
– Worst Case R
BW3
BW3
BW3
B:
resistance variation
DD
160
160
160
) Error (%) vs.
) Error (%) vs.
) Error (%) vs.
A
-40C
+85C
> 2.7V.
-40C
+85C
-40C
+85C
= +25°C, V
for
192
192
192
additional
+25C
+125C
+25C
+125C
224
+25C
+125C
224
224
BW
BW
BW
DD
256
256
256
= 5V, V
SS
= 0V.
FIGURE 2-59:
Wiper Setting. (R
40°C)
(V
FIGURE 2-60:
Wiper Setting. (R
40°C)
(V
FIGURE 2-61:
Wiper Setting. (R
40°C)
(V
DD
DD
DD
Note:
-1
-2
-3
12
10
-1000
-1200
-1400
-2
7
6
5
4
3
2
1
0
)/R
)/R
)/R
= 5.5V, I
= 3.0V, I
= 1.8V, I
8
6
4
2
0
-200
-400
-600
-800
200
0
0
0
BW(code = 256, 25°C)
BW(code = 256, 25°C)
BW(code = 256, 25°C)
0
CH0
CH2
32
32
See
information of R
characteristics for V
CH0
CH2
32
W
W
W
CH0
CH2
64
= 90 µA).
64
= 48 µA).
= 30 µA).
CH1
CH3
BW(code=n, 125°C)
CH1
CH3
BW(code=n, 125°C)
BW(code=n, 125°C)
Appendix
64
50 k
50 k
CH1
CH3
50 k
96
96
 2010 Microchip Technology Inc.
Wiper Code
Wiper Code
96
Wiper Code



128
128
128 160 192 224 256
/165°C * 1,000,000)
/165°C * 1,000,000)
/165°C * 1,000,000)
W
– R
– R
– R
B:
resistance variation
160
DD
160
WB
WB
WB
> 2.7V.
-R
-R
-R
for
PPM/°C vs.
PPM/°C vs.
PPM/°C vs.
192
192
BW(code=n, -
BW(code=n, -
BW(code=n, -
additional
224
224
256
256