Datasheet

(V
DD
= 1.8V, T
A
= +25°C, unless otherwise noted.)
Figure 1. Voltage-Divider and Variable Resistor Configurations
SUPPLY CURRENT
vs. DIGITAL INPUT VOLTAGE
MAX5391 toc02
DIGITAL INPUT VOLTAGE (V)
SUPPLY CURRENT (µA)
4.54.03.53.02.52.01.51.00.5
10
100
1000
10,000
1
0 5.0
V
DD
= 2.6V
V
DD
= 1.8V
V
DD
= 5V
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX5391 toc03
V
DD
(V)
I
DD
(μA)
5.24.74.23.73.22.72.2
15
20
25
30
10
1.7
RESISTANCE (W_-TO-L_)
vs. TAP POSITION (10kΩ)
MAX5391 toc04
TAP POSITION
W-TO-L RESISTANCE (kΩ)
1
2
3
4
5
6
7
8
9
10
0
204153102510 255
RESISTANCE (W_-TO-L_)
vs. TAP POSITION (50kΩ)
MAX5391 toc05
TAP POSITION
W-TO-L RESISTANCE (kΩ)
5
10
15
20
25
30
35
40
45
50
0
204153102510 255
RESISTANCE (W_-TO-L_)
vs. TAP POSITION (100kΩ)
MAX5391 toc06
TAP POSITION
W-TO-L RESISTANCE (kΩ)
10
20
30
40
50
60
70
80
90
100
0
204153102510 255
SUPPLY CURRENT
vs. TEMPERATURE
MAX5391 toc01
TEMPERATURE (°C)
SUPPLY CURRENT (μA)
1109580655035205-10-25
5
10
15
20
25
30
V
DD
= 5V
V
DD
= 2.6V
V
DD
= 1.8V
0
-40 125
H
L
W
W
N.C.
L
MAX5391/MAX5393 Dual 256-Tap, Volatile, Low-Voltage
Linear Taper Digital Potentiometers
Maxim Integrated │ 4
www.maximintegrated.com
Typical Operating Characteristics