MAX5487ETE+T

Overview

The MAX5487ETE+T is a dual, linear-taper digital potentiometer featuring an SPI-compatible serial interface and nonvolatile memory. It provides 256 tap positions with an end-to-end resistance of 10kΩ. The device operates on a single +2.7V to +5.25V supply and includes EEPROM storage for wiper positions upon power-up. Key electrical characteristics include ±1 LSB INL, ±0.5 LSB DNL in voltage-divider mode, and a 35ppm/°C temperature coefficient. It is housed in a 16-pin TQFN package.

Feature Summary

• Dual-channel architecture with 256 programmable tap positions
• Nonvolatile EEPROM retains wiper settings across power cycles
• SPI-compatible 3-wire serial control interface
• Low 35ppm/°C end-to-end resistance temperature coefficient

Applications

• LCD screen contrast and bias adjustment
• Audio volume control circuits
• Mechanical potentiometer replacement
• Programmable low-drift filters
• Programmable-gain amplifiers

Procurement Notes

Verify the specific suffix 'ETE+' indicates the lead-free RoHS-compliant version in the 16-pin TQFN-EP package. Confirm the 10kΩ resistance value matches design requirements, as other variants exist within the family. Ensure the ordering documentation aligns with the manufacturer's current specifications.

Selection Notes

Select this component when a dual-channel digital solution with persistent memory is required. The 10kΩ resistance suits moderate impedance applications compared to the 50kΩ or 100kΩ alternatives. Verify that the system logic levels are compatible with the SPI interface and that the operating voltage falls within the 2.7V to 5.25V range.

Part Context

This part belongs to the MAX5487/MAX5488/MAX5489 family of dual digital potentiometers. The MAX5487 variant specifically offers 10kΩ end-to-end resistance, distinguishing it from the MAX5488 (50kΩ) and MAX5489 (100kΩ). All family members share identical pinouts, interfaces, and nonvolatile memory features.

Replacement Considerations

Direct substitutes within the same package and specification include the MAX5488ETE+T (50kΩ) and MAX5489ETE+T (100kΩ), provided the resistance values meet circuit requirements. Other packages like the 14-pin TSSOP (MAX5487EUD+) offer equivalent functionality with different physical dimensions.