Datasheet

MAX5422/MAX5423/MAX5424
256-Tap, Nonvolatile, SPI-Interface,
Digital Potentiometers
_______________________________________________________________________________________ 5
WIPER TRANSIENT AT POWER-ON
4μs/div
V
DD
1V/div
W
1V/div
C
L
= 10pF
TAP = 128
H = V
DD
MAX5422 toc04
-1.0
-0.4
-0.6
-0.8
-0.2
0
0.2
0.4
0.6
0.8
1.0
-40 10-15 356085
END-TO-END RESISTANCE %
CHANGE vs. TEMPERATURE
MAX5422toc05
TEMPERATURE (°C)
END-TO-END RESISTANCE % CHANGE
STANDBY SUPPLY CURRENT
vs. TEMPERATURE
MAX5422 toc06
TEMPERATURE (°C)
SUPPLY CURRENT (μA)
603510-15
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
-40 85
V
DD
= 5.25V
V
DD
= 4.0V
V
DD
= 3.0V
V
DD
= 2.7V
MAXIMUM WIPER RESISTANCE
vs. TEMPERATURE
MAX5422 toc07
TEMPERATURE (°C)
RESISTANCE (Ω)
603510-15
100
200
300
400
500
600
700
0
-40 85
V
DD
= 5.25V
V
DD
= 4.5V
V
DD
= 3.0V
V
DD
= 2.7V
Typical Operating Characteristics (continued)
(V
DD
= 5.0V, T
A
= +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. DIGITAL INPUT VOLTAGE
MAX5422 toc08
DIGITAL INPUT VOLTAGE (V)
SUPPLY CURRENT (µA)
3421
100
200
300
400
500
600
0
05
THD+N RESPONSE
MAX5422 toc09
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.001
0.01
0.1
1
10
100
0.0001
10 100k
1:1 RATIO
20Hz TO 20kHz BANDPASS
INL vs. TAP POSITION
(MAX5422)
MAX5422 toc10
TAP POSITION
INL (LSB)
224192160128966432
-0.5
0
0.5
1.0
1.5
2.0
-1.0
0256
VARIABLE-RESISTOR MODE
V
DD
= 2.7V
I
SRC
= 50μA