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Maxim > Products > [Digital Potentiometers]  [Audio] 
DS1805
Addressable Digital Potentiometer


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Status
Part Number Status
DS1805 Active: In Production. But some versions of the family are No Longer Available. See Ordering Information.

Data Sheet
FULL DATA SHEET (PDF, 260kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

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.

Key Features   Applications/Uses
  • 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

 
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  		• 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 REND-TO-END
    (kΩ)    		 Res. Tol.
    (%)    		 Temp. Coeff.
    (ppm/°C)    		 Wiper Resistance
    (Ω)    		 ICC @5V
    (µA)    		 Smallest Available Pckg.
    (mm2)    		 Price
    typ typ max max w/pins See Notes
    DS1805  Linear 1 2-Wire Addressable Volatile 256
    10
    50
    100
    		 20 550 400 40 33 $1.10 @1k
    See All Digital Potentiometers (123)

    Diagram
    DS1805: Functional Diagram
    Functional Diagram

    Application Notes
  		• Application Note 3081: How to Increase the Bandwidth of Digital Potentiometers 10x to 100x - DS1805
  		• Application Note 3317: Adding Windows NT/2000/XP Support to the AN3315 Parallel-Port 2-Wire Software - DS1805
  		• Application Note 3996: Logging the Linear Digital Potentiometer - DS1805
  		• Application Note 4011: How to Construct a Pushbutton Controller for the DS1803/DS1805 Digital Potentiometers - DS1805
  		• Application Note 4051: Using an Analog Voltage to Control a Digital Potentiometer - DS1805
  		• Application Note 4290: Ratiometric Design Overcomes the 25% Tolerance of a Digital Potentiometer - DS1805
  		• Application Note 4291: Stack References for Higher Adjustable Voltages from a Digital Pot - DS1805

    Reliability Reports
  		• Reliability Report: DS1805.pdf

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * 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.


    Devices: 1-9 of 9

    DS1805 Notes Free
    Sample    		 Buy Status Recommended Replacement
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    DS1805Z-010+   10kohms
    		Active
    		SOIC(N);16 pin;62 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0097 (PDF)
    Use pkgcode/variation: S16+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1805Z-010   10kohms  
    		Active
    		SOIC(N);16 pin;62 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0097 (PDF)
    Use pkgcode/variation: S16-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1805Z-010/T&R   10kohms  
    		Active
    		SOIC(N);16 pin;62 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0097 (PDF)
    Use pkgcode/variation: S16-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1805Z-010+T&R   10kohms  
    		Active
    		SOIC(N);16 pin;62 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0097 (PDF)
    Use pkgcode/variation: S16+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1805E-010+T&R/W     N/A No Longer Available DS1805E-010+

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    DS1805E-010   10kohms  
    		Active
    		TSSOP;14 pin;33 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0113 (PDF)
    Use pkgcode/variation: U14-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1805E-010+T&R   10kohms  
    		Active
    		TSSOP;14 pin;33 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0113 (PDF)
    Use pkgcode/variation: U14+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1805E-010+   10kohms
    		Active
    		TSSOP;14 pin;33 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0113 (PDF)
    Use pkgcode/variation: U14+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1805E-010/T&R   10kohms  
    		Active
    		TSSOP;14 pin;33 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0113 (PDF)
    Use pkgcode/variation: U14-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis

    More Information
  		• New Product Press Release 2002-05-14 

    Related Products
    DS1803 Addressable Dual Digital Potentiometer

    More Like This: View Product Families for Similar Products

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    2006-11-10
    This page last modified: 2009-10-14


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