Datasheet

 2003 Microchip Technology Inc. DS11195C-page 7
MCP41XXX/42XXX
2.0 TYPICAL PERFORMANCE CURVES
Note: Unless otherwise indicated, curve represents 10 kΩ, 50 kΩ and 100 kΩ devices, V
DD
= 5V, V
SS
= 0V, T
A
= +25°C,
V
B
= 0V.
FIGURE 2-1: Normalized Wiper to End
Terminal Resistance vs. Code.
FIGURE 2-2: Potentiometer INL Error vs.
Code.
FIGURE 2-3: Potentiometer Mode
Tempco vs. Code.
FIGURE 2-4: Nominal Resistance 10 kΩ
vs. Temperature.
FIGURE 2-5: Nominal Resistance 50 kΩ
vs. Temperature.
FIGURE 2-6: Nominal Resistance 100 kΩ
vs. Temperature.
Note: The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
0
0.2
0.4
0.6
0.8
1
0 32 64 96 128 160 192 224 256
Code (Decimal)
Normalized Resistance (
Ω
)
R
WB
R
WA
V
DD
= +3V to +5V
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
0 32 64 96 128 160 192 224 256
Code (Decimal)
Potentiometer INL Error (LSB)
T
A
= -40°C to +85°C
Refer to Figure 2-25
-10
0
10
20
30
40
50
60
70
0 32 64 96 128 160 192 224 256
Code (Decimal)
Potentiometer Mode TempCo
(ppm / °C)
T
A
= -40°C to +85°C
V
A
= 3V
0
2
4
6
8
10
12
14
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (°C)
Nominal Resistance (k
Ω
)
R
AB
R
WB
Code = 80h
MCP41010, MCP42010 (10 kΩ potentiometers)
0
10
20
30
40
50
60
70
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (°C)
Nominal Resistance (k
Ω
)
R
AB
R
WB
Code = 80h
MCP41050, MCP42050 (50 k
Ω
potentiometers
)
0
20
40
60
80
100
120
140
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (°C)
Nominal Resistance (k
Ω
)
MCP41100, MCP42100 (100 k
Ω
potentiometers)
R
AB
R
WB
Code = 80h