MAX5417LETA+T

Overview

The MAX5417LETA+T is a nonvolatile, linear-taper digital potentiometer featuring 256 tap positions and an I²C-compatible serial interface. It provides a nominal end-to-end resistance of 50kΩ with a temperature coefficient of 35ppm/°C. The device operates on a single supply voltage ranging from +2.7V to +5.25V and draws a typical standby current of 500nA. Packaged in a compact 3mm x 3mm 8-pin TDFN with an exposed pad, it supports extended operating temperatures from -40°C to +85°C.

Feature Summary

• Nonvolatile EEPROM retains wiper position for up to 50 years or 200,000 write cycles
• Fast-mode I²C-compatible serial interface supporting data rates up to 400kbps
• Low static supply current of 500nA (typical) in standby mode
• ±0.5 LSB DNL and INL linearity in voltage-divider mode

Applications

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

Procurement Notes

Verify the specific factory-preset I²C address associated with the 'L' suffix before ordering, as multiple address options exist within the MAX5417 family. Confirm that the 8-pin TDFN-EP package dimensions align with the target PCB land pattern requirements.

Selection Notes

Select this component when a 50kΩ resistance value is required; the MAX5418 offers 100kΩ and the MAX5419 offers 200kΩ. Ensure the application utilizes a single-supply voltage between 2.7V and 5.25V. Verify that the system can accommodate the 3mm x 3mm TDFN footprint and thermal dissipation needs via the exposed ground pad.

Part Context

This part belongs to the MAX5417/MAX5418/MAX5419 series of 256-tap digital potentiometers. While sharing identical pinouts and interfaces, the series differentiates by nominal resistance: 50kΩ for the MAX5417, 100kΩ for the MAX5418, and 200kΩ for the MAX5419.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.