MCP413X Datasheet, PDF (16/88 Pages) Microchip Technology – 7/8-Bit Single/Dual SPI Digital POT with Volatile Memory

MCP413X/415X/423X/425X
Note: Unless otherwise indicated, T_A = +25°C, V_DD = 5V, V_SS = 0V.
120
100
80
60
-40C Rw
-40C INL
-40C DNL
25C Rw
25C INL
25C DNL
85C Rw
85C INL
85C DNL
125C Rw
125C INL
125C DNL
0.3
0.2
DNL
INL
0.1
0
-0.1
40
85°C ^{-40°C 25°C}
R_W
125°C
-0.2
20
-0.3
0 32 64 96 128 160 192 224 256
Wiper Setting (decimal)
FIGURE 2-5:
5 kΩ Pot Mode – R_W (Ω),
INL (LSb), DNL (LSb) vs. Wiper Setting and
Ambient Temperature (V_DD = 5.5V).
120
100
80
-40C Rw
-40C INL
-40C DNL
25C Rw
25C INL
25C DNL
85C Rw
85C INL
85C DNL
INL
125C Rw
125C INL
125C DNL
1.25
0.75
0.25
60
-0.25
40
-40°C
125°C ^{85°C 25°C}
R_W
DNL
-0.75
20
0
-1.25
32 64 96 128 160 192 224 256
Wiper Setting (decimal)
FIGURE 2-8:
5 kΩ Rheo Mode – R_W (Ω),
INL (LSb), DNL (LSb) vs. Wiper Setting and
Ambient Temperature (V_DD = 5.5V).
300
260
220
180
140
100
60
20
0
-40C Rw
-40C INL
-40C DNL
25C Rw
25C INL
25C DNL
85C Rw
85C INL
85C DNL
125C Rw
125C INL
125C DNL
0.3
0.2
INL
DNL
0.1
0
R_W
-0.1
125°C
85°C
-0.2
-40°C ^25°C
-0.3
32 64 96 128 160 192 224 256
Wiper Setting (decimal)
FIGURE 2-6:
5 kΩ Pot Mode – R_W (Ω),
INL (LSb), DNL (LSb) vs. Wiper Setting and
Ambient Temperature (V_DD = 3.0V).
300
260
-40C Rw
25C Rw
85C Rw
125C Rw
-40C INL 25C INL
85C INL
125C INL
6
-40C DNL 25C DNL 85C DNL 125C DNL
220
INL
4
180
140
2
R_W
100
0
60
-40°C
25°C
125°C 85°C
DNL
20
-2
0 32 64 96 128 160 192 224 256
Wiper Setting (decimal)
FIGURE 2-9:
5 kΩ Rheo Mode – R_W (Ω),
INL (LSb), DNL (LSb) vs. Wiper Setting and
Ambient Temperature (V_DD = 3.0V).
2500
2000
1500
-40C Rw
-40C INL
-40C DNL
INL
25C Rw
25C INL
25C DNL
85C Rw
85C INL
85C DNL
125C Rw
125C INL
125C DNL
0.5
0.4
0.3
0.2
0.1
1000
0
500
0
0
DNL
RW
64
128
192
Wiper Setting (decimal)
-0.1
-0.2
-0.3
256
Note:
Refer to AN1080 for additional informa-
tion on the characteristics of the wiper
resistance (R_W) with respect to device
voltage and wiper setting value.
FIGURE 2-7:
5 kΩ Pot Mode – R_W (Ω),
INL (LSb), DNL (LSb) vs. Wiper Setting and
Ambient Temperature (V_DD = 1.8V).
2500
2000
1500
1000
-40C Rw
-40C INL
-40C DNL
25C Rw
25C INL
25C DNL
85C Rw
85C INL
85C DNL
INL
125C Rw
125C INL
125C DNL
118
98
78
58
38
500
0
0
RW
DNL
64
128
192
Wiper Setting (decimal)
18
-2
256
Note:
Refer to AN1080 for additional informa-
tion on the characteristics of the wiper
resistance (R_W) with respect to device
voltage and wiper setting value.
FIGURE 2-10:
5 kΩ Rheo Mode – R_W (Ω),
INL (LSb), DNL (LSb) vs. Wiper Setting and
Ambient Temperature (V_DD = 1.8V).
DS22060B-page 16
© 2008 Microchip Technology Inc.