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Maxim > Products > [Digital-to-Analog Converters]  [Digital Potentiometers] 
DS1867
Dual Digital Potentiometer with EEPROM


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 320kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The DS1867 has two 256-position potentiometers, with wiper positions each set as 8-bit values and stored on-chip in nonvolatile memory. Communication takes place through a 3-wire serial port interface that drives an internal control logic unit. Multiple DS1867s can be linked or daisy-chained for control by a single processor.

Digital potentiometers improve upon mechanical devices with processor control and programmability, greater reliability and accuracy, and packaging options that facilitate automatic assembly. This digital potentiometer offers extremely low-power use and reliable, accurate performance throughout the industrial temperature range.

The DS1867 can be used to control the incoming signal levels in modems or for level adjustment and control of RF and audio signals in cellular telephones. Digital potentiometers are also used for battery charging and control circuitry, tuning and calibration, offset trimming of operational amplifiers, gain control, and power supply regulation.

Key Features
  • Nonvolatile version of the DS1267
  • Two 256-position digital potentiometers
  • Wipers digitally set and read through serial port
  • EEPROM maintains settings in the absence of power
  • Resistors can be connected in series for higher total resistance
  • Ultra low-power consumption, quiet, pumpless design
  • Three-wire serial control interface
  • Operating ranges:
    • Single +5V or ±5V supplies
    • -40°C to +85°C

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
DS1867  Linear 2 3-Wire Serial Non-Volatile 256
10
50
100
 20 750 400 250 45 $3.14 @1k
See All Digital Potentiometers (121)

Diagram
DS1867: Block Diagram
Block Diagram

Application Notes
  		• Application Note 87: DS1867 Power Supply Conditioning for EEPROM Wiper Storage - DS1867
  		• Application Note 213: Using a PC with a DS3900 to Communicate with DS1267s, DS1867s, and DS1868s - DS1867
  		• Application Note 3081: How to Increase the Bandwidth of Digital Potentiometers 10x to 100x - DS1867

    Design Guides
  		• Digital Potentiometers (PDF)

    Reliability Reports
  		• Reliability Report: DS1867.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: 1-26 of 26

    DS1867 Notes Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    DS1867-10    
    		Active PDIP(N);14 pin;158 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P14-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1867-50    
    		Active PDIP(N);14 pin;158 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P14-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1867-100   100kohms  
    		Active PDIP(N);14 pin;158 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P14-3*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1867-10+  
    		Active PDIP(N);14 pin;158 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P14+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1867-100+   100kohms
    		Active PDIP(N);14 pin;158 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P14+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1867-50+  
    		Active PDIP(N);14 pin;158 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P14+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1867S-010/T&R   10kohms  
    		Active SOIC(W);16 pin;111 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1867S-050N/T&R/    
    		Active SOIC(W);16 pin;111 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1867S-010+T&R    
    		Active SOIC(W);16 pin;111 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1867S-10    
    		Active SOIC(W);16 pin;111 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1867S-50    
    		Active SOIC(W);16 pin;111 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1867S-100   100kohms  
    		Active SOIC(W);16 pin;111 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1867S-050/T&R   50kohms  
    		Active SOIC(W);16 pin;111 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1867S-050+T&R   50kohms  
    		Active SOIC(W);16 pin;111 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1867S-10+  
    		Active SOIC(W);16 pin;111 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1867S-100+   100kohms
    		Active SOIC(W);16 pin;111 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1867S-50+  
    		Active SOIC(W);16 pin;111 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1867E-10    
    		Active TSSOP;20 pin;45 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
    DS1867E-50    
    		Active TSSOP;20 pin;45 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
    DS1867E-100   100kohms  
    		Active TSSOP;20 pin;45 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
    DS1867E-010/T&R   10kohms  
    		Active TSSOP;20 pin;45 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
    DS1867E-10+  
    		Active TSSOP;20 pin;45 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1867E-100+   100kohms
    		Active TSSOP;20 pin;45 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1867E-50+  
    		Active TSSOP;20 pin;45 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1867E-010+T&R   10kohms  
    		Active TSSOP;20 pin;45 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1867E-050+T&R    
    		Active TSSOP;20 pin;45 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

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    1999-10-21
    This page last modified: 2009-10-23


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