MAX5418NETA+T

Overview

The MAX5418NETA+T is a nonvolatile, linear-taper digital potentiometer featuring a 100kΩ end-to-end resistance and 256 tap points. It utilizes a fast-mode I²C-compatible serial interface for communication at rates up to 400kbps. The device includes an internal EEPROM to store the wiper position for initialization during power-up. Operating on a single supply voltage ranging from +2.7V to +5.25V, it exhibits a typical static supply current of 500nA. The component is housed in a compact 3mm x 3mm 8-pin TDFN package with an exposed pad.

Feature Summary

• Nonvolatile memory retains wiper position across power cycles
• Fast-mode I²C-compatible serial interface supports up to 400kbps
• Low standby current consumption of 500nA (typical)
• Single-supply operation from +2.7V to +5.25V

Applications

• Mechanical potentiometer replacement
• Low-drift programmable-gain amplifier circuits
• Liquid-crystal display contrast control

Procurement Notes

Verify the specific ordering suffix 'NETA+T' against the manufacturer's official documentation to confirm factory-preset address configuration and tape-and-reel packaging format. Ensure compatibility with the required I²C bus addressing scheme when integrating multiple devices on the same serial line.

Selection Notes

Select this model for applications requiring a 100kΩ nominal resistance value. The NETA+ variant provides a specific factory-set slave address combination; verify that this address does not conflict with other devices on the I²C bus or configure the A0 pin appropriately if additional address flexibility is needed.

Part Context

This component belongs to the MAX5417/MAX5418/MAX5419 family of 256-tap nonvolatile digital potentiometers. While sharing identical architecture and interface protocols, the MAX5418 is distinguished by its 100kΩ resistor value, whereas the MAX5417 offers 50kΩ and the MAX5419 provides 200kΩ.

Replacement Considerations

Direct functional substitutes within the same family include the MAX5417LETA+T and MAX5419LETA+T, provided the system design accommodates their respective 50kΩ and 200kΩ resistance values.