Datasheet

Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
MAX5402
256-Tap, µPoT, Low-Drift,
Digital Potentiometer
________________________________________________________________________________________ 5
-0.20
-0.10
-0.15
0.00
-0.05
0.05
0.10
0.15
0.20
0649632 128 160 192 224 256
VOLTAGE-DIVIDER INL vs. INPUT CODE
MAX5402 Toc07
INPUT CODE (DECIMAL)
INL (LSB)
0.0
0.4
0.2
0.8
0.6
1.0
1.2
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80
SUPPLY CURRENT vs. TEMPERATURE
MAX5402 Toc08
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
V
DD
= +5V
V
DD
= +3V
PIN NAME FUNCTION
1 L Low Terminal of Resistor
2 GND Ground
3 CS Chip Select Input
4 DIN Serial Data Input
5 SCLK Serial 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
200ns/div
(CODE 127 TO 128)
TAP-TO-TAP SWITCHING TRANSIENT
V
W-L
+2.49V
+2.51V
+5V
0
MAX5402 toc09
CS
10
01 2 3 4 5
1
0.1
0.01
0.001
0.0001
INPUT LOGIC VOLTAGE
MAX5402 Toc10
DIGITAL INPUT VOLTAGE (V)
SUPPLY CURRENT (mA)
V
DD
= +5V
V
DD
= +3V