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DS1869

3V Dallastat Electronic Digital Rheostat

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The DS1869 Dallastat™ provides the same features as the DS1669 but with operational capability for 3-volt systems.

It provides 64 uniform tap points over standard resistive ranges of 10kΩ, 50kΩ, or 100kΩ. The DS1869 can be configured to operate using a single pushbutton, dual pushbutton, or CPU input by varying power-on conditions. Nonvolatile wiper settings are maintained in EEPROM.

Applications for the DS1869 include LCD contrast and backlighting, tone and volume control. As an integrated circuit, the digital potentiometer replaces mechanical potentiometers with digital precision. It has no moving parts to wear out, saves space, reduces heat, and communicates with a processor for flexible and automatic adjustment.

Data Sheet

Download	Rev 1	(PDF, 144kB)
E-Mail

Key Features

Single 64-position potentiometer
Wiper position stored in EEPROM
Digital or pushbutton control interface options
3V to 8V differential supply operational range
Operating temperature: -40°C to +85°C
10kΩ, 50kΩ, and 100kΩ versions

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

DS1869

Linear

Contact-Closure

Non-Volatile

100

750

400

44.1

$2.01 @1k

See All Digital Potentiometers (129)

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

Pin Assignment

Application Notes

Application Note 168		DS1869 Digital Potentiometer Modes of Operation
Application Note 3081		How to Increase the Bandwidth of Digital Potentiometers 10x to 100x
Tutorial 4292		Where Is Ground?
Application Note 4561		Linear Brightness Controller for LEDs Has 64 Taps
Application Note 4992		Reduce the Chances of Human Error: Part 1, Power and Ground

Product Guides

Signal Chain (PDF)

Reliability Reports

Reliability Report:

DS1869.pdf

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Notes	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1869-10				Active	PDIP(N);8 pin;81.9 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1869-10+				Active	PDIP(N);8 pin;81.9 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1869-100	100kohms			Active	PDIP(N);8 pin;81.9 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1869-100+	100kohms			Active	PDIP(N);8 pin;81.9 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1869-50				Active	PDIP(N);8 pin;81.9 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1869-50+				Active	PDIP(N);8 pin;81.9 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1869S-010+T&R	10kohms			Active	SOIC;8 pin;44.1 mm² Outline Drawing:21-0262 (PDF) Land Pattern: 90-0258 (PDF) Use pkgcode/variation: W8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1869S-010/T&R	10kohms			Active	SOIC;8 pin;44.1 mm² Outline Drawing:21-0262 (PDF) Land Pattern: 90-0258 (PDF) Use pkgcode/variation: W8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1869S-050+T&R	50kohms			Active	SOIC;8 pin;44.1 mm² Outline Drawing:21-0262 (PDF) Land Pattern: 90-0258 (PDF) Use pkgcode/variation: W8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1869S-050/T&R	50kohms			Active	SOIC;8 pin;44.1 mm² Outline Drawing:21-0262 (PDF) Land Pattern: 90-0258 (PDF) Use pkgcode/variation: W8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Notes	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1869S-10				Active	SOIC;8 pin;44.1 mm² Outline Drawing:21-0262 (PDF) Land Pattern: 90-0258 (PDF) Use pkgcode/variation: W8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1869S-10+				Active	SOIC;8 pin;44.1 mm² Outline Drawing:21-0262 (PDF) Land Pattern: 90-0258 (PDF) Use pkgcode/variation: W8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1869S-100	100kohms			Active	SOIC;8 pin;44.1 mm² Outline Drawing:21-0262 (PDF) Land Pattern: 90-0258 (PDF) Use pkgcode/variation: W8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1869S-100+	100kohms			Active	SOIC;8 pin;44.1 mm² Outline Drawing:21-0262 (PDF) Land Pattern: 90-0258 (PDF) Use pkgcode/variation: W8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1869S-100+T&R	100kohms			Active	SOIC;8 pin;44.1 mm² Outline Drawing:21-0262 (PDF) Land Pattern: 90-0258 (PDF) Use pkgcode/variation: W8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1869S-100/T&R	100kohms			Active	SOIC;8 pin;44.1 mm² Outline Drawing:21-0262 (PDF) Land Pattern: 90-0258 (PDF) Use pkgcode/variation: W8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1869S-50				Active	SOIC;8 pin;44.1 mm² Outline Drawing:21-0262 (PDF) Land Pattern: 90-0258 (PDF) Use pkgcode/variation: W8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1869S-50+				Active	SOIC;8 pin;44.1 mm² Outline Drawing:21-0262 (PDF) Land Pattern: 90-0258 (PDF) Use pkgcode/variation: W8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1869V-C01				Active	SOIC;8 pin;44.1 mm² Outline Drawing:21-0262 (PDF) Land Pattern: 90-0258 (PDF) Use pkgcode/variation: W8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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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; 1999-11-20
This page last modified: 2009-10-28