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DS1669

Dallastat Electronic Digital Rheostat

Overview

Technical Documents

Ordering Info

User Comments (2)

All

Status

All versions are No Longer Available. See Ordering Information for recommended replacements.

Description

The DS1669 Dallastat™ is a single digital rheostat or potentiometer with access to all three potentiometer terminals. The potentiometer has 64 wiper positions with equal or linear resistive step sizes. This device has both positive and negative 8V (max) supply inputs for maximum wiper outputs of ±7.5V. The wiper position is stored in EEPROM for power-up in a known position or to save calibration information. Control access is configurable with a single pushbutton, dual pushbutton, or digital source input.

Data Sheet

Download	Rev 2	(PDF, 180kB)
E-Mail

Key Features

Replaces Mechanical Variable Resistors and Potentiometers
Electronic Interface Provided for Digital as well as Manual Control
Wide Differential Operating Range Up to ±8V
Wiper Position Is Maintained in the Absence of Power
Available in 8-Pin SO and 8-Pin DIP Packages
Standard Resistance Values for Dallastat
- ~ 10kΩ (DS1669-10)
- ~ 50kΩ (DS1669-50)
- ~ 100kΩ (DS1669-100)
Operating Temperature Range
- Extended Industrial: -40°C to +85°C

Applications/Uses

Audio Volume Control
Mobile Phones and PDAs
Portable Electronics
Replacement for 6-Bit Linear DAC Functions
Replacement for Mechanical Potentiometers

Diagram

Pin Assignment

Application Notes

Application Note 184		Digitally-Controlled Phase Shift Using the DS1669
Application Note 593		Dallas Semiconductor Digital Potentiometers: Frequently Asked Questions
Application Note 3081		How to Increase the Bandwidth of Digital Potentiometers 10x to 100x
Tutorial 4292		Where Is Ground?

Product Guides

Signal Chain (PDF)

Reliability Reports

Reliability Report:

DS1669.pdf

Software/Models

none

Ordering Information

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Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Notes	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1669-10			N/A	No Longer Available	DS1869-10	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
DS1669-10+			N/A	No Longer Available	DS1869-10+	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
DS1669-100	100kohms		N/A	No Longer Available	DS1869-100	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
DS1669-100+	100kohms		N/A	No Longer Available	DS1869-100+	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
DS1669-50			N/A	No Longer Available	DS1869-50	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
DS1669-50+			N/A	No Longer Available	DS1869-50+	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
DS1669E-50/T&R/			N/A	No Longer Available	DS1869S-050/T&R	TSSOP;20 pin;45.2 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0116 (PDF) Use pkgcode/variation: U20-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1669S-10			N/A	No Longer Available	DS1869S-10	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
DS1669S-10+			N/A	No Longer Available	DS1869S-10+	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
DS1669S-10+T&R			N/A	No Longer Available	DS1869S-010+T&R	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
Part Number	Notes	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1669S-10/T&R			N/A	No Longer Available	DS1869S-010/T&R	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
DS1669S-10/T&R/C03			N/A	No Longer Available	DS1869S-010/T&R	SOIC; Land Pattern: Not Available	-40°C to +85°C	See data sheet
DS1669S-10/T&R/C05			N/A	No Longer Available	DS1869S-010/T&R	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
DS1669S-100	100kohms		N/A	No Longer Available	DS1869S-100	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
DS1669S-100+	100kohms		N/A	No Longer Available	DS1869S-100+	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
DS1669S-100+T&R	100kohms		N/A	No Longer Available	DS1869S-100+T&R	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
DS1669S-100/T&R	100kohms		N/A	No Longer Available	DS1869S-100/T&R	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
DS1669S-50			N/A	No Longer Available	DS1869S-50	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
DS1669S-50+			N/A	No Longer Available	DS1869S-50+	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
DS1669S-50+T&R			N/A	No Longer Available	DS1869S-050+T&R	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
Part Number	Notes	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1669S-50/T&R			N/A	No Longer Available	DS1869S-050/T&R	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
DS1669S-50/T&R/C01			N/A	No Longer Available	DS1869S-050/T&R	SOIC; Land Pattern: Not Available	-40°C to +85°C	See data sheet
DS1669S-50/T&R/C02			N/A	No Longer Available	DS1869S-050/T&R	SOIC; Land Pattern: Not Available	-40°C to +85°C	See data sheet
DS1669S-50/T&R/C04			N/A	No Longer Available	DS1869S-050/T&R	SOIC; Land Pattern: Not Available	-40°C to +85°C	See data sheet

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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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 2; 2006-01-18
This page last modified: 2009-10-28