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DS1809

DS1809

Dallastat

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Overview

Description

The DS1809 Dallastat is a single, 64-position digital potentiometer which provides both a simple contact closure-controlled interface and a microprocessor-controlled interface. Wiper position is maintained in the absence of power in EEPROM. Wiper setting can be stored automatically or on command.

Because it handles both mechanical pushbutton and digital inputs, the DS1809 can adapt to applications with either or both mechanical and processor-controlled interfaces. In either case, digitally controlled resistance values are more reliable and accurate than mechanical potentiometers and can be mounted with automated manufacturing processes, saving time and money.
DS1809: Block Diagram DS1809: Block Diagram Enlarge+

Key Features

  • Single 64-position potentiometer
  • Digital or pushbutton control
  • Two nonvolatile wiper storage options
  • Operating ranges:
    • -40ºC to +85ºC
    • 4.5V to 5.5V

Parametric Specs

Part NumberTaperPOTsControl InterfaceWiper MemoryStepsREND-TO-END
(kΩ)		Res. Tol.
(%)		Temp. Coeff.
(ppm/°C)		Wiper Resistance
(Ω)		ICC @5V
(µA)		Package/PinsBudgetary
Price
typtypmaxSee Notes
DS1809 Linear1Contact-ClosureNon-Volatile64
10
50
100
2075040025
PDIP/8
SOIC (N)/8
UMAX/8
$1.49 @1k
See All Digital Potentiometers (120)
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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources

Technical Documents

Tutorial 4992 Reduce the Chances of Human Error: Part 1, Power and Ground
Tutorial 4292 Where Is Ground?
Tutorial 3081 How to Increase the Bandwidth of Digital Potentiometers 10x to 100x
App Note 183 Controlling a Variable Voltage Power Supply Using the DS1809 (Pushbutton Control)

Quality and Environmental Data

Product Reliability Reports: DS1809.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • DS1809-010+
  • DS1809-050+
  • DS1809-100+
  • DS1809U-010+
  • DS1809U-010+T&R
  • DS1809U-050+
  • DS1809U-100+
  • DS1809U-100+T&R
  • DS1809Z-010+
  • DS1809Z-050+
  • DS1809Z-100+
    •

    Quality And Environmental

    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

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    Related Resources

    Technical Docs