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DS1805

Addressable Digital Potentiometer

Overview

Technical Documents

Ordering Info

Status

Part Number	Status
DS1805	Active: In Production. See Ordering Information for details.

Description

The DS1805 addressable digital potentiometer contains a single 256-position digitally controlled potentiometer. Device control is achieved through a 2-wire serial interface. Device addressing is provided through three address inputs that allow up to eight devices on a single 2-wire bus. The exact wiper position of the potentiometer can be written or read. The DS1805 is available in 16-pin SO and 14-pin TSSOP packages. The device is available in three standard resistance values: 10kΩ, 50kΩ, and 100kΩ. The DS1805 is specified over the industrial temperature range. The DS1805 provides a low-cost alternative for designs based on the DS1803, but require only a single potentiometer.

Data Sheet

Download	Rev 1	(PDF, 260kB)
E-Mail

Key Features

3V or 5V Operation
Low Power Consumption
One Digitally Controlled, 256-Position Potentiometer
Compatible with DS1803-Based Designs
14-Pin TSSOP (173mil) and 16-Pin SO (150mil) Available for Surface-Mount Applications
Three Address Inputs
Serial 2-Wire Bus
Operating Temperature Range
- Industrial: -40°C to +85°C
Standard Resistance Values
- DS1805-010: 10kΩ
- DS1805-050: 50kΩ
- DS1805-100: 100kΩ

Applications/Uses

CCFL Inverters
Instrumentation and Industrial Controls
Multimedia Products
PDAs and Cell Phones
Portable Electronics

Key Specifications:

Digital Potentiometers

Part Number

Taper

POTs

Control Interface

Wiper Memory

Steps

R_END-TO-END
(kΩ)

Res. Tol.
(%)

Temp. Coeff.
(ppm/°C)

Wiper Resistance
(Ω)

I_CC @5V
(µA)

Smallest Available Pckg.
(mm²)

Budgetary Price

typ

max

max w/pins

See Notes

DS1805

Linear

2-Wire Addressable

Volatile

256

100

550

400

33.4

$1.09 @1k

See All Digital Potentiometers (126)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Functional Diagram

More Information

New Product Press Release

[ 2002-05-14 ]

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Rev 1; 2006-11-10
This page last modified: 2009-10-14