Nonvolatile, 32-Position Digital Potentiometer

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5

Typical Operating Characteristics (continued)

END-TO-END RESISTANCE PERCENT

CHANGE FROM +25

°C vs. TEMPERATURE

TEMPERATURE (

°C)

60

40

20

0

-20

-4

-3

-2

-1

0

1

2

3

4

5

-5

-40

80

-37.18ppm/

°C = tc

-148.38ppm/

°C = tc

TEMPERATURE COEFFICIENT

vs. POTENTIOMETER SETTING

POTENTIOMETER SETTING (DEC)

30

25

15

20

10

5

-8

-6

-4

-2

0

2

4

6

8

10

-10

0

25

°C TO 85°C

+25

°C TO -40°C

Pin Description

PIN

NAME

FUNCTION

1

INC

Increment/Decrement Wiper Control. When INC transitions from high-to-low, the wiper moves in the

direction established by the state of the U/D pin.

2U/D

Up/Down Control. Sets the directions of wiper movement. When set to a high state, a high-to-low

transition on the INC pin increments the wiper. When set to a low state, a high-to-low transition on the

INC pin decrements the wiper.

3

H

High-End Terminal of the Potentiometer

4

GND

Ground Terminal

5

W

Wiper Terminal of the Potentiometer

6

L

Low-End Terminal of the Potentiometer

7

CS

Chip Select. When set to a low state, the wiper position can be adjusted using U/D and INC. When in

a high-state, activity on INC and U/D does not affect or change the wiper position.

Power Supply Terminal