MAX5488ETE#G16

Overview

The MAX5488ETE+ is a dual, linear-taper digital potentiometer featuring a 3-wire SPI-compatible interface and nonvolatile memory. It provides 256 tap positions with an end-to-end resistance of 50kΩ and a temperature coefficient of 35ppm/°C. Operating on a single +2.7V to +5.25V supply, it draws 400µA during write cycles and 1µA in standby. The device includes EEPROM for wiper position storage, ensuring recall upon power-up. It is housed in a 16-pin 3mm x 3mm TQFN package and operates within the -40°C to +85°C temperature range.

Feature Summary

• Dual-channel architecture with 256 programmable tap positions
• Nonvolatile EEPROM retains wiper settings across power cycles
• SPI-compatible serial interface for digital control
• Low standby current of 1µA

Applications

• LCD screen adjustment and bias control
• Audio volume control
• Mechanical potentiometer replacement
• Low-drift programmable filters
• Programmable-gain amplifiers

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and RoHS compliance status. Confirm availability through authorized distributors as supply levels may fluctuate. Ensure the selected variant matches the required pin configuration and thermal specifications for the target application environment.

Selection Notes

Select this component when a 50kΩ resistance value is required for dual-channel applications. Compare against MAX5487 (10kΩ) or MAX5489 (100kΩ) if different resistance ranges are needed. Verify that the 3-wire SPI interface aligns with the system's microcontroller capabilities and check that the 50kΩ wiper current limits meet the circuit requirements.

Part Context

This part belongs to the MAX5487/MAX5488/MAX5489 family of dual, nonvolatile digital potentiometers. While sharing identical interfaces and memory features, the series is differentiated by end-to-end resistance values: 10kΩ, 50kΩ, and 100kΩ respectively. All variants offer 256 taps and are available in TQFN or TSSOP packages.

Replacement Considerations

Direct functional replacements within the same family include MAX5487ETE+ (10kΩ) and MAX5489ETE+ (100kΩ), provided the resistance difference is acceptable for the circuit design.