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DS3903
Triple 128-Position Nonvolatile Digital Potentiometer

LOWEST COST NONVOLATILE TRIPLE
POTENTIOMETER IDEAL FOR AUTOMATING
POWER-SUPPLY CALIBRATION
Eliminates Manual Factory Calibration Costs


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Description
FULL DATA SHEET (PDF, 632kB)
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The DS3903 contains three nonvolatile (NV) low temperature coefficient digital potentiometers, which can be accessed through a 2-wire bus. The DS3903 operates in both 3V and 5V systems, and it features a write-protect pin that can lock the positions of the potentiometers. An address pin allows two DS3903s to be placed on the same 2-wire bus.

Key Features   Applications/Uses
  • Three 128-Position Linear Potentiometers (Two 10kΩ, One 100kΩ)
  • NV Wiper Storage
  • Low End-to-End Temperature Coefficient
  • Operates on an Industry-Standard 2-Wire Bus
  • Write-Protect Pin
  • Supply Range: 3V or 5V
  • Operating Temperature Range: -40°C to +85°C
  • Packaging: 20-Pin TSSOP

     
  • A Small and Low-Cost Replacement for Mechanical Potentiometers
  • Fiber Optic Transceiver Modules
  • Mobile Phones and PDAs
  • Portable Electronics
  • Power Supply Calibration

    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) Wiper Resistance (typ) (Ω) Max. Idle State Supply Current @5V (µA) Applications Features Supply Voltage (V) RoHS Available Package Smallest Available Package (max w/pins) (mm2) Price*
    DS3903  Linear 3 2-Wire Addressable Non-Volatile 128 10+10+90 20 300 250 250
    Fiber Communications
    Power Supply Cal.
    EEPROM Wiper Memory
    2.7 to 5.5 Yes TSSOP/20 45 $0.95 @ 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.

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    2002-08-09
    This page last modified: 2007-07-13




             



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