AD5233BRU50-REEL7

Digital Potentiometers Overview

The AD5233BRU50-REEL7 is a quad-channel, nonvolatile memory digital potentiometer with 64-position resolution. It features 50 kΩ terminal resistance and operates on a single supply of 2.7 V to 5.5 V or dual supplies of ±2.5 V. The device includes an SPI-compatible serial interface for programming four independent RDAC registers. Nonvolatile EEMEM storage retains wiper settings across power cycles, with a typical restore time of 140 μs. It provides permanent memory write protection, wiper setting readback, and predefined increment/decrement commands.

Digital Potentiometers Feature Summary

• Quad-channel architecture with 64-step (6-bit) resolution per channel
• Nonvolatile EEMEM stores wiper positions and restores them at power-on
• SPI-compatible serial interface with readback and daisy-chain capabilities
• 50 kΩ nominal terminal resistance with linear taper characteristics

Digital Potentiometers Applications

• Mechanical potentiometer replacement in solid-state designs
• Instrumentation gain and offset adjustment
• Programmable voltage-to-current conversion circuits
• Sensor calibration and programmable filter time constants

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix REEL7 confirms tape-and-reel packaging when sourcing components. Confirm the BRU package designation corresponds to the 24-lead TSSOP form factor required for the target PCB layout. Ensure the 50 kΩ resistance value matches the circuit design specifications before procurement.

Digital Potentiometers Selection Notes

Select this component for applications requiring persistent analog resistance control without mechanical wear. The 64-position resolution may be insufficient for high-precision audio or measurement systems requiring finer steps. Verify that the system voltage remains within the 2.7 V to 5.5 V range to ensure monotonic operation and proper logic level compatibility.

Digital Potentiometers Part Context

This part belongs to the AD523x family of nonvolatile digital potentiometers. The AD5231 offers single-channel 1024-position resolution, while the AD5232 provides dual-channel 256-position resolution. The AD5233 specifically addresses needs for four independent channels with lower 64-position resolution, suitable for multi-channel trimming or coarse adjustment tasks.

Digital Potentiometers Replacement Considerations

Direct pin-compatible substitutes include other members of the AD523x family such as the AD5231 or AD5232, provided the channel count and resolution requirements are adjusted accordingly. Cross-family replacements require verification of SPI command set compatibility and EEMEM retention behavior.