MAX5389NAUD+T

Overview

The MAX5389NAUD+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 100kΩ with a temperature coefficient of 35ppm/°C and operates from a single +2.6V to +5.5V supply. The device utilizes an up/down interface for wiper control and includes a power-on reset function that sets the wiper to midscale. Packaged in a 14-pin TSSOP, it supports an operating temperature range of -40°C to +125°C.

Feature Summary

• Dual 256-Tap Linear Taper Positions
• Single +2.6V to +5.5V Supply Operation
• Low (< 1μA) Quiescent Supply Current
• Up/Down Interface
• Power-On Sets Wiper to Midscale

Applications

• Audio Mixing
• Mechanical Potentiometer Replacement
• Low-Drift Programmable Filters and Amplifiers
• Adjustable Voltage References/Linear Regulators
• Programmable Delays and Time Constants

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status via official documentation. Ensure proper handling procedures are followed during storage and assembly to maintain device reliability.

Selection Notes

Select this model when a 100kΩ end-to-end resistance is required. Verify compatibility with the up/down control interface logic levels. Ensure the application voltage remains within the 2.6V to 5.5V operational range.

Part Context

This component belongs to the MAX5389 series of dual digital potentiometers. Other variants include the MAX5389LAUD+T (10kΩ) and MAX5389MAUD+T (50kΩ). All share identical pinouts, interfaces, and electrical characteristics except for the specific end-to-end resistance value.

Replacement Considerations

Direct replacements include MAX5389LAUD+T and MAX5389MAUD+T. These parts share the same package and interface but differ in resistance values. Verify circuit requirements before substituting.