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FEATURES

 Single 100-Position Taper Potentiometer

 Nonvolatile (NV) On-Demand Wiper

Storage

 Operates from 3V or 5V Supplies

 Up/Down, Increment-Controlled Interface

 Available in 8-Pin (300 mils) DIP, 8-Pin

(150 mils) SO, and 8-Pin (118 mils) µSOP

 -40

°C to +85°C Operating Temperature

Range

 Standard Resistance Values:

–

DS1804-010: 10k

Ω

–

DS1804-050: 50k

Ω

–

DS1804-100: 100k

Ω

PIN ASSIGNMENT

PIN DESCRIPTION

H

- High-Terminal of Potentiometer

L

- Low-Terminal of Potentiometer

W

- Wiper of Potentiometer

- 3V or 5V Power Supply

CS

- Chip Select

- Up/Down Control

INC

- Increment/Decrement Wiper Control

GND

- Ground

DESCRIPTION

The DS1804 NV trimmer potentiometer is a nonvolatile digital potentiometer that has 100 positions. The

device provides an ideal method for low-cost trimming applications using a CPU or manual control input

with minimal external circuitry. Wiper position of the DS1804 can be stored in EEPROM memory on

demand. The device’s wiper position is manipulated by a three-terminal port that provides an increment/

DS1804 is available in three resistor grades, which include a 10k

Ω, 50kΩ, and 100kΩ. The device is

provided in an industrial temperature grade. Additionally, the DS1804 will operate from 3V or 5V

supplies and is ideal for portable application requirements. Three packaging options are available and

include the 8-pin (300 mils) DIP, 8-pin (150 mils) SO, and 8-pin (118 mils

) μSOP.

DS1804

Nonvolatile Trimmer Potentiometer

19-5876; Rev 6/11

INC

1

8

U/D

2

7

CS

H

3

6

L

GND

4

5

W

DIP (300 mils)

SO (150 mils)

μSOP (118 mils)