Datasheet

© 2006 Microchip Technology Inc. DS21945E-page 15
MCP4021/2/3/4
Note: Unless otherwise indicated, T
A
= +25°C, V
DD
= 5V, V
SS
= 0V.
FIGURE 2-17: 5k Ω Pot Mode – R
W
( Ω ),
INL (LSb), DNL (LSb) vs. Wiper Setting and
Ambient Temperature (V
DD
= 5.5V).
FIGURE 2-18: 5k
Ω Pot Mode – R
W
( Ω ),
INL (LSb), DNL (LSb) vs. Wiper Setting and
Ambient Temperature (V
DD
= 2.7V).
FIGURE 2-19: 5k
Ω Rheo Mode – R
W
( Ω ),
INL (LSb), DNL (LSb) vs. Wiper Setting and
Ambient Temperature (V
DD
= 5.5V)
FIGURE 2-20: 5k
Ω Rheo Mode – R
W
( Ω ),
INL (LSb), DNL (LSb) vs. Wiper Setting and
Ambient Temperature (V
DD
= 2.7V).
0
20
40
60
80
100
120
140
0 8 16 24 32 40 48 56
Wiper Setting (decimal)
Wiper Resistance
(Rw)(ohms)
-0.1
-0.075
-0.05
-0.025
0
0.025
0.05
0.075
Error (LSb)
-40C Rw 25C Rw 85C Rw 125C Rw
-40C INL 25C INL 85C INL 125C INL
-40C DNL 25C DNL 85C DNL 125C DNL
INL
DNL
RW
0
50
100
150
200
250
300
350
400
450
0 8 16 24 32 40 48 56
Wiper Setting (decimal)
Wiper Resistance
(Rw)(ohms)
-0.125
-0.1
-0.075
-0.05
-0.025
0
0.025
0.05
0.075
0.1
Error (LSb)
-40C Rw 25C Rw 85C Rw 125C Rw
-40C INL 25C INL 85C INL 125C INL
-40C DNL 25C DNL 85C DNL 125C DNL
INL
DNL
RW
0
20
40
60
80
100
120
0 8 16 24 32 40 48 56
Wiper Setting (decimal)
Wiper Resistance
(Rw)(ohms)
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
Error (LSb)
-40C Rw 25C Rw 85C Rw 125C Rw
-40C INL 25C INL 85C INL 125C INL
-40C DNL 25C DNL 85C DNL 125C DNL
INL
DNL
RW
0
100
200
300
400
500
600
0 8 16 24 32 40 48 56
Wiper Setting (decimal)
Wiper Resistance
(Rw)(ohms)
-1
0
1
2
3
4
5
Error (LSb)
-40C Rw 25C Rw 85C Rw 125C Rw
-40C INL 25C INL 85C INL 125C INL
-40C DNL 25C DNL 85C DNL 125C DNL
INL
DNL
RW