Datasheet

(V
DD
= 1.8V, T
A
= +25°C, unless otherwise noted.)
VARIABLE RESISTOR DNL
vs. TAP POSITION (100kΩ)
MAX5391 toc11
TAP POSITION
DNL (LSB)
20415310251
-0.08
-0.06
-0.04
-0.02
0
0.02
0.04
0.06
0.08
0.10
-0.10
0 255
I
WIPER
= 15μA
END-TO-END RESISTANCE PERCENTAGE
CHANGE vs. TEMPERATURE
MAX5391 toc08
TEMPERATURE (°C)
END-TO-END RESISTANCE % CHANGE
11095-25 -10 5 35 50 6520 80
-0.02
-0.01
0
0.01
0.02
0.03
0.04
0.05
100kΩ
10kΩ
50kΩ
-0.03
-40 125
VARIABLE RESISTOR INL
vs. TAP POSITION (10kΩ)
MAX5391 toc12
TAP POSITION
INL (LSB)
20415310251
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
0 255
I
WIPER
= 150μA
VARIABLE RESISTOR DNL
vs. TAP POSITION (10kΩ)
MAX5391 toc09
TAP POSITION
DNL (LSB)
20415310251
-0.08
-0.06
-0.04
-0.02
0
0.02
0.04
0.06
0.08
0.10
-0.10
0 255
I
WIPER
= 150μA
VARIABLE RESISTOR INL
vs. TAP POSITION (50kΩ)
MAX5391 toc13
TAP POSITION
INL (LSB)
20415310251
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-0.5
0 255
I
WIPER
= 30μA
VARIABLE RESISTOR INL
vs. TAP POSITION (100kΩ)
MAX5391 toc14
TAP POSITION
INL (LSB)
20415310251
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-0.5
0 255
I
WIPER
= 15μA
VOLTAGE-DIVIDER DNL
vs. TAP POSITION (10kΩ)
MAX5391 toc15
TAP POSITION
DNL (LSB)
20415310251
-0.08
-0.06
-0.04
-0.02
0
0.02
0.04
0.06
0.08
0.10
-0.10
0 255
VARIABLE RESISTOR DNL
vs. TAP POSITION (50kΩ)
MAX5391 toc10
TAP POSITION
DNL (LSB)
20415310251
-0.08
-0.06
-0.04
-0.02
0
0.02
0.04
0.06
0.08
0.10
-0.10
0 255
I
WIPER
= 30μA
WIPER RESISTANCE
vs. WIPER VOLTAGE
WIPER VOLTAGE (V)
WIPER RESISTANCE (Ω)
0.5
80
100
120
140
60
0 1.0
MAX5391 toc07
V
DD
= 5V
V
DD
= 2.6V
V
DD
= 1.8V
5.04.54.03.53.02.52.01.5
MAX5391/MAX5393 Dual 256-Tap, Volatile, Low-Voltage
Linear Taper Digital Potentiometers
Maxim Integrated │ 5
www.maximintegrated.com
Typical Operating Characteristics (continued)