MAX5387LAUD+T

Overview

The MAX5387LAUD+T is a dual, 256-tap, volatile, low-voltage linear taper digital potentiometer manufactured by Analog Devices Inc./Maxim Integrated. It features an end-to-end resistance of 10kΩ and operates from a single +2.6V to +5.5V power supply. The device incorporates an I2C-compatible interface for serial control and maintains a low quiescent supply current of less than 1μA. Designed for automotive temperature ranges, it functions reliably between -40ºC and +125ºC. The component is housed in a 14-pin TSSOP package.

Feature Summary

• Dual 256-Tap Linear Taper Positions
• Single +2.6V to +5.5V Supply Operation
• Low < 1μA Quiescent Supply Current
• I2C-Compatible Interface with Up to Eight Addressable Devices

Applications

• Low-Voltage Battery Applications
• Portable Electronics
• Mechanical Potentiometer Replacement
• Offset and Gain Control
• Adjustable Voltage References/Linear Regulators

Procurement Notes

Verify the specific ordering suffix '+T' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the 'L' designation accurately reflects the 10kΩ end-to-end resistance value needed for the circuit design. Ensure compliance with RoHS standards as indicated by the '+' suffix in the part number.

Selection Notes

Select this component when a dual-channel digital potentiometer with a 10kΩ resistance range is required. The volatile memory characteristic necessitates re-initialization upon power-up if state retention is critical. Verify that the system voltage falls within the 2.6V to 5.5V operating range and that the I2C bus timing meets the specified setup and hold requirements.

Part Context

This part belongs to the MAX5387 family of dual digital potentiometers. Other variants in the series include the MAX5387MAUD+ (50kΩ) and MAX5387NAUD+ (100kΩ), which share identical pinouts and functional specifications but differ in their end-to-end resistance values. All variants utilize the same 14-pin TSSOP package and I2C interface architecture.

Replacement Considerations

Direct substitutes within the same family include MAX5387MAUD+T and MAX5387NAUD+T, provided the resistance tolerance aligns with application needs. Cross-family replacements require verification of pin compatibility, interface protocol support, and electrical parameter alignment.