AD5232
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AD5232

Nonvolatile Memory, Dual, 256-Position Digital Potentiometer

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Info: : PRODUCTION tooltip
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Part Details
Part Models 6
1ku List Price Starting From $3.57
Features
  • Dual-channel, 256-position resolution
  • 10 kΩ, 50 kΩ, and 100 kΩ nominal terminal resistance
  • Nonvolatile memory maintenance of wiper settings
  • Predefined linear increment/decrement instructions
  • Predefined ±6 dB step log taper increment/decrement instructions
  • SPI-compatible serial interface
  • Wiper settings and EEMEM readback
  • 3 V to 5 V single-supply operation
  • ±2.5 V dual-supply operation
  • 14 bytes of general-purpose user EEMEM
  • Permanent memory write protection
  • 100-year typical data retention (TA = 55°C)
Additional Details
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The AD5232 device provides a nonvolatile, dual-channel, digitally controlled variable resistor (VR) with 256-position resolution. This device performs the same electronic adjustment function as a mechanical potentiometer with enhanced resolution, solid state reliability, and superior low temperature coefficient performance. The versatile programming of the AD5232, performed via a microcontroller, allows multiple modes of operation and adjustment.

In the direct program mode, a predetermined setting of the RDAC registers (RDAC1 and RDAC2) can be loaded directly from the microcontroller. Another important mode of operation allows the RDACx register to be refreshed with the setting previously stored in the corresponding EEMEM register (EEMEM1 and EEMEM2). When changes are made to the RDACx register to establish a new wiper position, the value of the setting can be saved into the EEMEMx register by executing an EEMEM save operation. After the settings are saved in the EEMEMx register, these values are automatically transferred to the RDACx register to set the wiper position at system power-on. Such operation is enabled by the internal preset strobe. The preset strobe can also be accessed externally.

All internal register contents can be read via the serial data output (SDO). This includes the RDAC1 and RDAC2 registers, the corresponding nonvolatile EEMEM1 and EEMEM2 registers, and the 14 spare USER EEMEM registers that are available for constant storage.

The basic mode of adjustment is the increment and decrement command instructions that control the wiper position setting register (RDACx). An internal scratch pad RDACx register can be moved up or down one step of the nominal resistance between Terminal A and Terminal B. This step adjustment linearly changes the wiper to Terminal B resistance (RWB) by one position segment of the device’s end-to-end resistance (RAB). For exponential/ logarithmic changes in wiper setting, a left/right shift command instruction adjusts the levels in ±6 dB steps, which can be useful for audio and light alarm applications.

The AD5232 is available in a thin, 16-lead TSSOP package. All parts are guaranteed to operate over the extended industrial temperature range of −40°C to +85°C. An evaluation board, the EVAL-AD5232-10EBZ, is available.

APPLICATIONS

  • Mechanical potentiometer replacement
  • Instrumentation: gain and offset adjustment
  • Programmable voltage-to-current conversion
  • Programmable filters, delays, and time constants
  • Programmable power supply
  • Low resolution DAC replacement
  • Sensor calibration
Part Models 6
1ku List Price Starting From $3.57

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD5232BRUZ10
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AD5232BRUZ10-REEL7
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AD5232BRUZ100
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AD5232BRUZ100-RL7
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AD5232BRUZ50
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AD5232BRUZ50-REEL7
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Product Lifecycle

PCN

Oct 29, 2013

- 13_0242

AD5232 Datasheet Correction

AD5232BRUZ10

PRODUCTION

AD5232BRUZ10-REEL7

PRODUCTION

AD5232BRUZ100

PRODUCTION

AD5232BRUZ100-RL7

PRODUCTION

AD5232BRUZ50

PRODUCTION

AD5232BRUZ50-REEL7

PRODUCTION

Feb 11, 2011

- 10_0005

Halogen Free Material Change for TSSOP Products Assembled at Amkor

AD5232BRUZ10

PRODUCTION

AD5232BRUZ10-REEL7

PRODUCTION

AD5232BRUZ100

PRODUCTION

AD5232BRUZ100-RL7

PRODUCTION

AD5232BRUZ50

PRODUCTION

AD5232BRUZ50-REEL7

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Oct 29, 2013

- 13_0242

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AD5232 Datasheet Correction

AD5232BRUZ10

PRODUCTION

AD5232BRUZ10-REEL7

PRODUCTION

AD5232BRUZ100

PRODUCTION

AD5232BRUZ100-RL7

PRODUCTION

AD5232BRUZ50

PRODUCTION

AD5232BRUZ50-REEL7

PRODUCTION

Feb 11, 2011

- 10_0005

arrow down

Halogen Free Material Change for TSSOP Products Assembled at Amkor

AD5232BRUZ10

PRODUCTION

AD5232BRUZ10-REEL7

PRODUCTION

AD5232BRUZ100

PRODUCTION

AD5232BRUZ100-RL7

PRODUCTION

AD5232BRUZ50

PRODUCTION

AD5232BRUZ50-REEL7

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 1

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EVAL-AD5232

AD5232 Evaluation Board

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EVAL-AD5232

AD5232 Evaluation Board

AD5232 Evaluation Board

Features and Benefits

  • Full featured evaluation board for the AD5232
  • Several test circuits
  • Various ac/dc input signals
  • PC control via a separately purchased system demonstration platform (SDP-B)
  • PC control software
  • 26 extra bytes in EEMEM for user-defined information
  • Resistor tolerance error stored in EEMEM

Product Detail

With versatile programmability, the AD5232 allows multiple modes of operation, including read/write access in the RDAC and EEMEM registers, increment / decrement of resistance, resistance changes in ±6 dB scales, wiper setting read-back, and extra EEMEM for storing user-defined information, such as memory data for other components or a lookup table.

The AD5232 supports dual-supply ±2.25 V to ±2.75 V operation and single-supply 2.7 V to 5.5 V operation, making the device suited for battery-powered applications and many other applications. In addition, the AD5232 uses a versatile SPI-compatible serial interface, allowing speeds of up to 50 MHz.

The EVAL-AD5232SDZ can operate in single-supply and dual-supply mode and incorporates an internal power supply from the USB.

Complete specifications for the AD5232 part can be found in the AD5232 data sheet.

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