AD5259BRMZ50

Digital Potentiometers Overview

The AD5259BRMZ50 is a single-channel, nonvolatile digital potentiometer featuring 256 adjustable positions and an I²C-compatible interface. It utilizes EEPROM to retain wiper settings and factory-stored resistance tolerance data (±30% nominal) with 0.1% readback accuracy. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V, drawing a typical positive supply current of 2 µA. It supports software write protection and allows up to four devices on a single bus via address pins AD0 and AD1. The component is housed in a compact MSOP-10 package.

Digital Potentiometers Feature Summary

• Nonvolatile memory maintains wiper settings and stores resistor tolerance data for precision applications
• I²C-compatible serial interface with separate VLOGIC pin for flexible logic level operation
• 256-position adjustment with end-to-end resistance options including 50 kΩ
• Software write protect command and address decode pins AD0/AD1 for multi-device bus configurations

Digital Potentiometers Applications

• LCD panel VCOM adjustment
• LCD panel brightness and contrast control
• Programmable power supplies
• RF amplifier biasing
• Gain control and offset adjustment

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact resistance value and packaging type. Confirm that the required operating temperature range aligns with the industrial specifications provided in the datasheet. Ensure compatibility with the target I²C bus speed and voltage levels before integration.

Digital Potentiometers Selection Notes

Select this component when nonvolatile storage of resistance values is required without external memory. The 50 kΩ variant suits moderate impedance circuits. Verify that the MSOP-10 package dimensions fit the PCB layout constraints. Consider the 2 µA supply current for low-power designs and ensure the I²C controller supports the required addressing modes.

Digital Potentiometers Part Context

This part belongs to the AD5259 series of nonvolatile digital potentiometers manufactured by Analog Devices Inc. The series offers various resistance values and packages, including LFCSP-10. The BRMZ50 designation specifically indicates the 50 kΩ resistance option packaged in the MSOP-10 format, distinguishing it from other variants in the family.

Digital Potentiometers Replacement Considerations

Direct replacements within the same family include other AD5259 variants with different resistance values or packages. Cross-family substitution requires verifying I²C compatibility, pinout alignment, and nonvolatile memory functionality.