Datasheet

(V
DD
= +5V, T
A
= +25°C, unless otherwise noted.)
Figure 1. Voltage-Divider and Variable Resistor Configurations
H
L
W W
N.C.
L
SUPPLY CURRENT
vs. DIGITAL INPUT VOLTAGE
DIGITAL INPUT VOLTAGE (V)
SUPPLY CURRENT (µA)
0.5 3.0 5.04.54.01.5 2.52.01.0 3.5
10
1000
1
100
10,000
0.1
0
MAX5389 toc02
V
DD
= 2.6V
V
DD
= 5V
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX5389 toc03
V
DD
(V)
I
DD
(µA)
5.14.64.13.63.12.6
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
RESISTANCE (W-TO-L)
vs. TAP POSITION (10kΩ
)
TAP POSITION
W-TO-L RESISTANCE (kΩ)
25520415351 102
3
9
6
11
0
4
10
7
2
8
5
1
0
MAX5389 toc04
RESISTANCE (W-TO-L)
vs. TAP POSITION (50kΩ
)
TAP POSITION
W-TO-L RESISTANCE (kΩ)
25520415351 102
15
45
30
55
0
20
50
35
10
40
25
5
0
MAX5389 toc05
RESISTANCE (W-TO-L)
vs. TAP POSITION (100kΩ)
MAX5389 toc06
TAP POSITION
RESISTANCE (W-TO-L) (kΩ)
20415310251
10
20
30
40
50
60
70
80
90
100
110
0
0 255
SUPPLY CURRENT
vs. TEMPERATURE
MAX5389 toc01
SUPPLY CURRENT (µA)
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
TEMPERATURE (°C)
1109565 80-10 5 20 35 50-25-40 125
V
DD
= 5V
V
DD
= 2.6V
MAX5389 Dual, 256-Tap, Volatile, Low-Voltage
Linear Taper Digital Potentiometer
Maxim Integrated │ 4
www.maximintegrated.com
Typical Operating Characteristics