MCP4461-103E Datasheet, PDF (22/100 Pages) Microchip Technology – 7/8-Bit Quad I2C Digital POT with Nonvolatile Memory

MCP444X/446X
Note: Unless otherwise indicated, T_A = +25°C, V_DD = 5V, V_SS = 0V.
2.50%
1.50%
0.50%
-40C
+25C
+85C
+125C
-0.50%
-1.50%
-2.50%
0
32 64 96 128 160 192 224 256
Wiper Code
FIGURE 2-13:
5 kΩ – Worst Case R_BW
from Average R_BW (R_BW0-R_BW3) Error (%) vs.
Wiper Setting and Temperature
(V_DD = 5.5V, I_W = 190 µA).
54
52
CH0 CH1
CH2 CH3
50
48
46
44
42
40
0
32 64 96 128 160 192 224 256
Wiper Code
FIGURE 2-15:
5 kΩ – R_WB PPM/°C vs.
Wiper Setting. (R_{BW(code=n, 125°C)}-R_{BW(code=n, -}
40°C) ^)/RBW(code = 256, 25°C)^{/165°C * 1,000,000)}
(V_DD = 5.5V, I_W = 190 µA).
2.50%
1.50%
0.50%
-40C
+25C
+85C
+125C
-0.50%
-1.50%
-2.50%
0
32 64 96 128 160 192 224 256
Wiper Code
FIGURE 2-14:
5 kΩ – Worst Case R_BW
from Average R_BW (R_BW0-R_BW3) Error (%) vs.
Wiper Setting and Temperature
(V_DD = 3.0V, I_W = 190 µA).
100
95
CH0 CH1
90
CH2 CH3
85
80
75
70
65
60
0
32 64 96 128 160 192 224 256
Wiper Code
FIGURE 2-16:
5 kΩ – R_WB PPM/°C vs.
Wiper Setting. (R_{BW(code=n, 125°C)}-R_{BW(code=n, -}
40°C) ^)/RBW(code = 256, 25°C)^{/165°C * 1,000,000)}
(V_DD = 3.0V, I_W = 190 µA).
DS22265A-page 22
© 2010 Microchip Technology Inc.