AD5233BRUZ50

Digital Potentiometers Overview

The AD5233BRUZ50 is a quad-channel, nonvolatile digitally controlled potentiometer featuring 64-position resolution. It operates on a single supply of 2.7 V to 5.5 V or dual supplies of ±2.5 V. The device includes four independent RDACs with a nominal resistance of 50 kΩ and a temperature coefficient of 600 ppm/°C. Power consumption is typically 3.5 µA at 2.7 V. Nonvolatile memory (EEMEM) retains wiper settings for up to 100 years at 55°C and restores them within 140 µs typical upon power-up. It supports SPI-compatible serial interfaces with readback capabilities.

Digital Potentiometers Feature Summary

• Quad-channel architecture with 6-bit (64-position) resolution per channel
• Nonvolatile EEMEM stores wiper settings with 100-year retention and 100,000 write cycles
• SPI-compatible serial interface with hardware preset (PR) and write protect (WP) pins
• Advanced control modes including predefined increment/decrement and ±6 dB/step log taper adjustments

Digital Potentiometers Applications

• Mechanical potentiometer replacement in solid-state systems
• 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 against the manufacturer's current data sheet to confirm terminal resistance and package type. Confirm that the BRUZ50 designation corresponds to the 50 kΩ variant in the active production guide. Check for any end-of-life notifications or obsolescence status directly from Analog Devices official channels prior to procurement.

Digital Potentiometers Selection Notes

Select this component when four independent digital potentiometers are required in a single package. Ensure the system voltage falls within the 2.7 V to 5.5 V range. Verify that the 64-step resolution meets the application's precision requirements. Consider the 50 kΩ nominal resistance value relative to the load impedance to minimize loading effects and ensure accurate voltage division.

Digital Potentiometers Part Context

The AD5233 belongs to the AD523x family of nonvolatile digital potentiometers. It shares the same pinout and core functionality as the AD5231 (single channel), AD5232 (dual channel), and AD5234 (octal channel). The primary distinction is the number of integrated RDAC channels, allowing the AD5233 to replace multiple discrete components in multi-channel signal conditioning designs.

Digital Potentiometers Replacement Considerations

Direct pin-compatible substitutes include other members of the AD523x series such as the AD5231, AD5232, and AD5234, provided the channel count matches the design requirements. For applications requiring higher resolution, the AD5292 series offers 8-bit or 10-bit options but may require software adaptation due to different tap counts.