Rainbow Electronics MAX5484 - Manual (Page 7)

MAX5481–MAX5484
10-Bit, Nonvolatile, Linear-Taper Digital
Potentiometers
_______________________________________________________________________________________ 7
0
20
10
40
30
50
60
70
80
WIPER RESISTANCE vs. CODE
(VARIABLE RESISTOR, T A = +25 °C)
MAX5481 toc19
R
W
(Ω
)
0 256 384 128 512 640 768 896 1024
CODE
0
20
10
40
30
50
60
70
80
WIPER RESISTANCE vs. CODE
(VARIABLE RESISTOR, T A = +85 °C)
MAX5481 toc20
R
W
(Ω
)
0 256 384 128 512 640 768 896 1024
CODE
0
10
30
20
50
60
40
70
W-TO-L RESISTANCE vs. CODE
(MAX5484)
MAX5481 toc21
R
WL
(k
Ω
)
0 256 384 128 512 640 768 896 1024
CODE
0
2
6
4
10
12
8
14
W-TO-L RESISTANCE vs. CODE
(MAX5483)
MAX5481 toc22
R
WL
(k
Ω
)
0 256 384 128 512 640 768 896 1024
CODE
18.0
18.5
19.0
19.5
20.0
20.5
21.0
21.5
22.0
0 1 2 3 4 5
WIPER RESISTANCE vs. WIPER VOLTAGE
(VARIABLE RESISTOR)
MAX5481 toc23
WIPER VOLTAGE (V)
R
W
(Ω
)
V DD = 5V
CODE = 00 0000
-2.0
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
2.0
-40 -15 10 35 60 85
END-TO-END (R
HL
) % CHANGE
vs. TEMPERATURE (VOLTAGE-DIVIDER)
MAX5481 toc24
TEMPERATURE ( °C)
END-TO-END RESISTANCE CHANGE (%)
-2.0
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
2.0
-40 -15 10 35 60 85
WIPER-TO-END RESISTANCE (R WL ) % CHANGE
vs. TEMPERATURE (VARIABLE RESISTOR)
MAX5481 toc25
TEMPERATURE ( °C)
WIPER-TO-END RESISTANCE CHANGE (%)
CODE = 11 1111 1111
0
0.3
0.9
0.6
1.2
1.5
-40 10 -15 35 60 85
STANDBY SUPPLY CURRENT
vs. TEMPERATURE
MAX5481 toc26
TEMPERATURE ( °C)
I DD
(µ
A)
V DD = 5.25V
DIGITAL SUPPLY CURRENT
vs. DIGITAL INPUT VOLTAGE
MAX5481 toc27
DIGITAL INPUT VOLTAGE (V)
I DD
(µ
A)
4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5
1
10
100
1000
10,000
0.1
0 5.0
V DD = 5V
Typical Operating Characteristics (continued)
(V DD = 5.0V, V SS = 0, T A = +25°C, unless otherwise noted.)