Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)

256-Tap, µPoT, Low-Drift,

Digital Potentiometer

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5

-0.20

-0.10

-0.15

0.00

-0.05

0.05

0.10

0.15

0.20

064

96

32

128 160 192 224 256

VOLTAGE-DIVIDER INL vs. INPUT CODE

INPUT CODE (DECIMAL)

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

TEMPERATURE (°C)

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

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

+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

DIGITAL INPUT VOLTAGE (V)