Datasheet

MAX5400/MAX5401
256-Tap SOT-PoT,
Low-Drift Digital Potentiometers in SOT23
_______________________________________________________________________________________ 5
MAX5400 Toc10
TAP-to-TAP SWITCHING TRANSIENT
(FROM CODE 127 toc CODE 128)
10mV/div
2.5V
5V/div
0
CS
V
W-L
10
0.0001
034215
SUPPLY CURRENT vs.
INPUT LOGIC VOLTAGE
0.001
MAX5400 Toc11
DIGITAL INPUT VOLTAGE (V)
SUPPLY CURRENT (mA)
0.01
0.1
1
V
DD
= +5V
V
DD
= +3V
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
-0.10
-0.06
-0.08
-0.02
-0.04
0.02
0
0.04
0.08
0.06
0.10
0649632 128 160 192 224 256
VOLTAGE DIVIDER DNL
vs. INPUT CODE (50kΩ)
MAX5400 Toc12
INPUT CODE-DECIMAL
(LSB)
-0.20
-0.10
-0.15
-0.05
0.05
0
0.10
0.15
0.20
0649632 128 160 192 224 256
VOLTAGE DIVIDER INL
vs. INPUT CODE (50kΩ)
MAX5400 Toc13
INPUT CODE-DECIMAL
(LSB)
V
DD
= +2.7V to +5.5V
PIN NAME FUNCTION
1 L Low Terminal of Resistor
2 GND Ground
3 CS Chip Select Input
4 DIN Serial Data Input
5 SCLK Clock Input
6V
DD
Power Supply. Bypass with a 0.1µF capacitor to GND.
7 W Wiper Terminal
8 H High Terminal of Resistor
Pin Description