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DS3930
Hex Nonvolatile Potentiometer with I/O and Memory


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Status
Active: In Production.

Description
FULL DATA SHEET (PDF, 632kB)
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The DS3930 contains six 256-position nonvolatile (NV) potentiometers, 64 bytes of NV user EEPROM memory, and four programmable NV I/O pins. The six potentiometers all share a common low side. The potentiometers are separated into two groups of three 50kΩ potentiometers in parallel. Each group of three potentiometers shares a common high side and forms an equivalent resistance of 16.6kΩ (three 50kΩ potentiometers in parallel).

Key Features   Applications/Uses
  • Six 256-Position NV Potentiometers
  • Four General-Purpose NV I/O Pins
  • 64 Bytes of User EEPROM Memory
  • 0 to 5.5V on Any Potentiometer Terminal, Independent of VCC
  • All Six Potentiometers Share a Common Low Side
  • Potentiometers Separated into Two Groups of Three Potentiometers, Each Sharing a Common High Side
  • 2-Wire Serial Interface
  • Wide Supply Range (2.7V to 5.5V)
  • Up to Eight DS3930s Can Share the Same 2-Wire Bus

 
  • Fiber Optic Transceiver Modules
  • Mobile Phones and PDAs
  • Portable Electronics
  • Power Supply Calibration
  • Radio Tuners
  • RF Transceivers
  • Small, Low-Cost Replacement for Mechanical Potentiometers Features
  • Voltage References

    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
    DS3930  Linear 6 2-Wire Addressable Non-Volatile 256 16.6 20 250 400 350 45 $1.95 @1k
    See All Digital Potentiometers (123)

    Diagram
    DS3930: Typical Operating Circuit
    Typical Operating Circuit

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    Document Ref.: xxx; 2003-04-24
    This page last modified: 2009-10-13


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