AD5231BRU100

AD5231BRU100

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AD5231BRU100
IC DGTL POT 100KOHM 16TSSOP
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$3.45

Price update:a months ago
Available in stock: 3007
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50M Parts Shipped in 5 Years
Analog Devices Inc.

Analog Devices Inc.

Analog Devices (NASDAQ: ADI) leads in crafting high-performance analog, mixed-signal, and digital signal processing integrated circuits. For decades, they've tackled signal processing challenges across global electronics. With over 100,000 clients, their products convert real-world phenomena into electrical signals. Merged with Maxim Integrated, they offer top-tier mixed-signal and power management technologies, solving complex problems from DC to 100 GHz and sensor to cloud.

View All Product from Analog Devices Inc.
AD5231BRU100 Products

The AD5231BRU100 is a nonvolatile memory*, digitally controlled potentiometer** with 1024-step resolution. The device performs the same electronic adjustment function as a mechanical potentiometer with enhanced resolution, solid state reliability, and remote controllability. The AD5231BRU100 has versatile programming that uses a standard 3-wire serial interface for 16 modes of operation and adjustment, including scratchpad programming, memory storing and restoring, increment/decrement, ±6 dB/step log taper adjustment, wiper setting readback, and extra EEMEM for user-defined information, such as memory data for other components, look-up table, or system identification information.

In scratchpad programming mode, a specific setting can be programmed directly to the RDAC register that sets the resistance between Terminals W–A and Terminals W–B. This setting can be stored into the EEMEM and is transferred automatically to the RDAC register during system power-on.

The EEMEM content can be restored dynamically or through externalPR strobing, and aWP function protects EEMEM contents. To simplify the programming, the linear-step increment or decrement commands can be used to move the RDAC wiper up or down, one step at a time. The ±6 dB step commands can be used to double or half the RDAC wiper setting.

The AD5231BRU100 is available in a 16-lead TSSOP. The part is guaranteed to operate over the extended industrial temperature range of −40°C to +85°C.

Feature

  • 1024-position resolution 
  • Nonvolatile memory maintains wiper setting
  • Power-on refresh with EEMEM setting 
  • EEMEM restore time: 140 μs typ 
  • Full monotonic operation 
  • 10 kΩ, 50 kΩ, and 100 kΩ terminal resistance 
  • Permanent memory write protection
  • Wiper setting readback 
  • Predefined linear increment/decrement instructions 
  • Predefined ±6 dB/step log taper increment/decrement instructions 
  • SPI®-compatible serial interface 
  • 3 V to 5 V single-supply or ±2.5 V dual-supply operation 

Applications

  • Mechanical potentiometer replacement
  • Instrumentation: gain, offset adjustment
  • Programmable voltage to current conversion
  • Programmable filters, delays, time constants
  • Programmable power supply
  • Low resolution DAC replacement
  • Sensor calibration
  • *The terms nonvolatile memory and EEMEM are used interchangeably. **The terms digital potentiometer and RDAC are used interchangeably.

    Data Sheet, Rev. C, 1/07

    Product Attributes

    TYPE DESCRIPTION Select all
    Memory Type Non-Volatile
    Voltage - Supply 2.7V ~ 5.5V, ±2.25V ~ 2.75V
    Features Cascade Pin
    Package Tube
    Product Status Obsolete
    Tolerance -40%, +20%
    Programmable Not Verified
    Temperature Coefficient (Typ) 600ppm/°C
    Taper Linear
    Mounting Type Surface Mount
    Configuration Potentiometer
    Supplier Device Package 16-TSSOP
    Number of Circuits 1
    Package / Case 16-TSSOP (0.173", 4.40mm Width)
    Number of Taps 1024
    Operating Temperature -40°C ~ 85°C
    Resistance (Ohms) 100k
    Resistance - Wiper (Ohms) (Typ) 50
    Interface SPI

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    $3.45

    Price update:a months ago
    Available in stock: 3007
    Analog Devices Inc.

    Analog Devices Inc.

    Analog Devices (NASDAQ: ADI) leads in crafting high-performance analog, mixed-signal, and digital signal processing integrated circuits. For decades, they've tackled signal processing challenges across global electronics. With over 100,000 clients, their products convert real-world phenomena into electrical signals. Merged with Maxim Integrated, they offer top-tier mixed-signal and power management technologies, solving complex problems from DC to 100 GHz and sensor to cloud.

    View All Product from Analog Devices Inc.

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