MAX5393MAUD+T

Overview

The MAX5393MAUD+T is a dual digital potentiometer IC from the MAX5391/MAX5393 family, manufactured by Analog Devices Inc./Maxim Integrated. It features two independent 256-tap linear taper potentiometers with an end-to-end resistance of 50kΩ. The device operates on a single supply voltage ranging from +1.7V to +5.5V and draws a quiescent current as low as 12µA at 1.7V. It utilizes a 3-wire SPI-compatible interface for wiper control and includes an internal charge pump to maintain low wiper resistance down to 1.7V. The component is housed in a 14-pin TSSOP package and is specified over an automotive temperature range of -40°C to +125°C.

Feature Summary

• Dual 256-Tap Linear Taper Digital Potentiometers
• Single +1.7V to +5.5V Supply Operation
• Low 12µA Quiescent Supply Current
• SPI-Compatible Interface
• -40°C to +125°C Operating Temperature Range

Applications

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

Procurement Notes

Verify the 'T' suffix indicates tape-and-reel packaging when sourcing this specific part number. Confirm the manufacturer designation matches Analog Devices Inc./Maxim Integrated. Ensure the order quantity aligns with reel specifications if bulk procurement is required.

Selection Notes

Select the MAX5393MAUD+T specifically for applications requiring a 50kΩ end-to-end resistance value within the MAX5393 series. Compare against the MAX5393LAUD+ (10kΩ) and MAX5393NAUD+ (100kΩ) variants to ensure the resistance matches circuit requirements. Verify that the volatile memory type meets system power-loss handling needs.

Part Context

This component belongs to the MAX5393 series of dual digital potentiometers. It shares the same pinout, interface, and core architecture as the MAX5393LAUD+ and MAX5393NAUD+, differing primarily in the end-to-end resistance value. The 'M' code designates the 50kΩ variant, while 'L' and 'N' denote 10kΩ and 100kΩ respectively.

Replacement Considerations

Direct functional replacements include MAX5393LAUD+ and MAX5393NAUD+. These parts share identical pinouts and interfaces but differ in resistance values (10kΩ and 100kΩ). Verify that the circuit tolerances accommodate these resistance differences before substitution.