User Manual

MAX5471/MAX5472/MAX5474/MAX5475
32-Tap, Nonvolatile, Linear-Taper Digital
Potentiometers in SOT23
4 _______________________________________________________________________________________
Typical Operating Characteristics
(V
DD
= 5.0V, T
A
= +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX5471 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
5.14.74.33.93.53.1
0.1
0.2
0.3
0.4
0.5
0
2.7 5.5
DIGITAL INPUTS = GND OR V
DD
STATIC SUPPLY CURRENT
vs. TEMPERATURE
MAX5471 toc02
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
603510-15
0.1
0.2
0.3
0.4
0.5
0
-40 85
DIGITAL INPUTS = GND OR V
DD
V
DD
= 5.0V
V
DD
= 3.0V
SUPPLY CURRENT
vs. DIGITAL INPUT VOLTAGE
MAX5471 toc03
DIGITAL INPUT VOLTAGE (V)
SUPPLY CURRENT (µA)
4321
1
10
100
1000
10,000
0.1
05
V
DD
= 5.0V
V
DD
= 3.0V
WIPER RESISTANCE
vs. TAP POSITION (MAX5474)
MAX5471 toc04
TAP POSITION
WIPER RESISTANCE (Ω)
252051015
250
300
350
400
450
500
550
600
200
030
V
DD
= 3.0V
V
DD
= 5.0V
WIPER RESISTANCE
vs. TAP POSITION (MAX5475)
MAX5471 toc05
TAP POSITION
WIPER RESISTANCE (Ω)
252051015
250
300
350
400
450
500
550
600
200
030
V
DD
= 3.0V
V
DD
= 5.0V
END-TO-END RESISTANCE % CHANGE
vs. TEMPERATURE
MAX5471 toc06
TEMPERATURE (°C)
END-TO-END RESISTANCE % CHANGE
6035-15 10
-0.15
-0.10
-0.05
0
0.05
0.10
0.15
0.20
-0.20
-40 85
100kΩ
100kΩ
50kΩ
50kΩ
W-TO-L RESISTANCE
vs. TAP POSITION
MAX5471 toc07
TAP POSITION
W-TO-L RESISTANCE (kΩ)
252015105
20
40
60
80
100
0
030
MAX5475
MAX5474
H-TO-GND RESISTANCE
vs. TAP POSITION
MAX5471 toc08
TAP POSITION
H-TO-GND RESISTANCE (kΩ)
252015105
20
40
60
80
100
0
030
MAX5472
MAX5471
TAP-TO-TAP SWITCHING TRANSIENT
MAX5471 toc09
400ns/div
INC
5V/div
W
100mV/div
C
L
= 10pF
V
H
= V
DD
TAP 16 TO TAP 15
MAX5474
MAX5475