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043002

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 (300mil) DIP, 8-pin

(150mil) SO, 8-pin (118mil) µSOP, and flip-

chip packages

§ Operating Temperature:

– Industrial:

-40ºC to +85ºC

§ Standard Resistance Values:

– DS1804-010 10k

W

– DS1804-050 50k

W

– DS1804-100 100k

W

PIN ASSIGNMENT

PIN DESCIPTION

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

W, 50kW, and 100kW. 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 (300mil) DIP, 8-pin (150mil) SO, 8-pin (118mil) µSOP, and the flip-chip package.

DS1804

NV Trimmer Potentiometer

www.maxim-ic.com

INC

1

8

U/D

2

7

CS

H

3

6

L

GND

4

5

W

8-Pin DIP (300mil)

8-Pin SO (150mil)

8-Pin µSOP (118mil)

8-Pin Flip-Chip Package

See Mech. Drawings Section