ENGLISH • 简体中文 • 日本語 • 한국어  


     
    
    
    
 

WHAT'S NEW PRODUCTS SOLUTIONS DESIGN APPNOTES SUPPORT BUY COMPANY MEMBERS
Maxim > Products > Digital-to-Analog Converters  Digital Potentiometers 
DS1847
Dual Temperature-Controlled NV Variable Resistor


  QuickView     Technical Documents     Ordering Info     More Information     User Comments (0)     All  
Data Sheet
FULL DATA SHEET (PDF, 272kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The DS1847 Dual Temperature-Controlled Nonvolatile (NV) Variable Resistor consists of two 256- position linear, variable resistors. The DS1847-050 consists of one 10kΩ and one 50kΩ, while the DS1847-010 consists of two 10kΩ resistors; both incorporate a direct-to-digital temperature sensor. The device provides an ideal method for setting and temperature-compensating bias voltages and currents in control applications using a minimum of circuitry.

The variable resistors settings are stored in EEPROM memory and can be accessed over the industry standard 2-wire serial bus. The value of each variable resistor is determined by a temperature-addressed look-up table, which can assign a unique value to each resistor for every 2°C increment over the -40°C to +95°C range. The output of the digital temperature sensor is also available as a 13-bit, 2's complement value over the serial bus. The interface I/O pins consist of SDA and SCL.

Key Features
  • Two linear taper, temperature-controlled variable resistors
  • DS1847-050
    • One 50kΩ, 256 position
    • One 10kΩ, 256 position
  • DS1847-010
    • Two 10kΩ, 256 position
  • Resistor settings changeable every 2°C
  • Access to temperature data and device control via a 2-wire interface
  • Operates from 3V or 5V supplies
  • Packaging: 14-pin TSSOP, 16-ball CSBGA
  • Operating temperature: -40°C to +95°C
  • Programming temperature: 0°C to +70°C

Key Specifications:   Digital Potentiometers
Part Number Taper POTs Per Pkg. Control Interface Wiper Memory Number of Steps End-to-End Resistance (kΩ) Res. Tol. (%) Temp. Coeff. (typ)(ppm/°C) Max. Idle State Supply Current @5V (µA) Applications Features Supply Voltage (V) RoHS Available Package Price**
DS1847  Linear 2 2-Wire Addressable Non-Volatile 256 10+50 20 850 1000
•Fiber Communications
•Resistance-Temp. Lookup Table
•128-Byte User EEPROM
•EEPROM Wiper Memory
•Resistance-Temp. Lookup Table
 3.0 to 5.5 Yes CSBGA/16
TSSOP/14 		$1.85 @ 1k
See All Digital Potentiometers (121)
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.

Application Notes
  		• Application Note 166: Interfacing Digitally Controlled Potentiometers and Resistors to Laser Drivers - DS1847
  		• Application Note 167: Considerations for the DS1847/DS1848 Look-Up Tables - DS1847
  		• Application Note 181: DS1847/DS1848 Temperature Coefficient Supplement - DS1847
  		• Application Note 206: Using a PC's RS-232 Serial Port To Communicate with 2-Wire Devices - DS1847
  		• Application Note 215: 2-Wire Communication Using LabVIEW - DS1847
  		• Application Note 216: How to Interpret DS1847/DS1848 Temperature Readings - DS1847
  		• Application Note 233: Regenerating the DS1847/DS1848 Resistor Calibration Constants - DS1847
  		• Application Note 237: Introduction of the DS1847 for Industrial Controls - DS1847
  		• Application Note 593: Dallas Semiconductor Digital Potentiometers: Frequently Asked Questions - DS1847
  		• Application Note 1093: HFAN-02.3.2: Maintaining Average Power and Extinction Ratio, Part 2, MAX3863 Laser Driver and DS1847 Digital Resistor - DS1847
  		• Application Note 1151: HFRD-02.0: 2.5Gbps Small Form Factor (SFF) Transmitter - DS1847
  		• Application Note 1769: Behind the Light Show in Optical Transceivers - DS1847
  		• Application Note 1794: Interfacing Digitally Controlled Pots and Resistors to Laser Drivers - DS1847
  		• Application Note 2099: DS1847/DS1848 Online Interactive Temperature Calculator - DS1847
  		• Application Note 3175: Base-Station RF Power-Amplifier Biasing - DS1847
  		• Application Note 3230: How to Use a PC's Parallel Port to Communicate with 2-Wire Devices - DS1847
  		• Application Note 3481: Using the DS1859 with External EEPROM - DS1847
  		• Application Note 3953: Side-by-Side Comparison of Fiber-Monitoring and Control ICs - DS1847
  		• Application Note 4051: Using an Analog Voltage to Control a Digital Potentiometer - DS1847

    Evaluation Kits
    none

    Design Guides
  		• DIGITAL POTENTIOMETERS (PDF)

    Reliability Reports
  		• Reliability Report: DS1847.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: 1-16 of 16

    DS1847 Notes Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    DS1847B-010   10kohms
    		CSBGA;16 pin;
    Dwg: 56-G6005-001
    Use pkgcode/variation: X16-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1847B-010+T&R   10kohms
    		CSBGA;16 pin;
    Dwg: 56-G6005-001
    Use pkgcode/variation: X16+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1847B-050+   10k/50kohms
    		CSBGA;16 pin;
    Dwg: 56-G6005-001
    Use pkgcode/variation: X16+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1847B-050+T&R   10k/50kohms
    		CSBGA;16 pin;
    Dwg: 56-G6005-001
    Use pkgcode/variation: X16+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1847B-010+   10kohms
    		CSBGA;16 pin;
    Dwg: 56-G6005-001
    Use pkgcode/variation: X16+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1847B-050/T&R   10k/50kohms
    		CSBGA;16 pin;
    Dwg: 56-G6005-001
    Use pkgcode/variation: X16-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1847B-010/T&R   10kohms
    		CSBGA;16 pin;
    Dwg: 56-G6005-001
    Use pkgcode/variation: X16-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1847B-050   10k/50kohms
    		CSBGA;16 pin;
    Dwg: 56-G6005-001
    Use pkgcode/variation: X16-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1847E-050+   10k/50kohms
    		TSSOP;14 pin;
    Dwg: 21-0066J (PDF)
    Use pkgcode/variation: U14+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1847E-010+   10kohms
    		TSSOP;14 pin;
    Dwg: 21-0066J (PDF)
    Use pkgcode/variation: U14+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1847E-010+T&R   10kohms
    		TSSOP;14 pin;
    Dwg: 21-0066J (PDF)
    Use pkgcode/variation: U14+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS1847E-050/T&R   10k/50kohms
    		TSSOP;14 pin;
    Dwg: 21-0066J (PDF)
    Use pkgcode/variation: U14-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1847E-010/T&R   10kohms
    		TSSOP;14 pin;
    Dwg: 21-0066J (PDF)
    Use pkgcode/variation: U14-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1847E-050   10k/50kohms
    		TSSOP;14 pin;
    Dwg: 21-0066J (PDF)
    Use pkgcode/variation: U14-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1847E-010   10kohms
    		TSSOP;14 pin;
    Dwg: 21-0066J (PDF)
    Use pkgcode/variation: U14-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS1847E-050+T&R   10k/50kohms
    		TSSOP;14 pin;
    Dwg: 21-0066J (PDF)
    Use pkgcode/variation: U14+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    Related Products
    DS1848 Dual Temperature-Controlled NV Variable Resistor & Memory

    Didn't Find What You Need?
  • Next Day Product Selection Assistance from Applications Engineers
  • Parametric Search
  • Applications Help

    •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

    		 Data Sheet 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

    		 Price and Availability 
     Samples 
     Buy Online 
     Package Information 
     Lead-Free Information 

    		 Related Products 
     Notes and Comments 
     Evaluation Kits 

    2006-01-18
    This page last modified: 2008-03-11




             


          Privacy Policy  •  Legal Notices

          Copyright © 2008 by Maxim Integrated Products, Dallas Semiconductor