MAX5417NETA+

Overview

The MAX5417NETA+ 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 includes internal EEPROM for wiper position recall upon power-up. Packaged in a compact 3mm x 3mm 8-pin TDFN format, it supports fast-mode communication at data rates up to 400kbps.

Feature Summary

• Nonvolatile memory retains wiper position across power cycles
• I²C serial interface with factory-set address 010110A (A0 pin configurable)
• 50kΩ nominal resistance with ±0.5 LSB INL/DNL linearity
• Low standby current of 500nA typical

Applications

• Mechanical potentiometer replacement
• Low-drift programmable-gain amplifier circuits
• LCD contrast control
• Volume control

Procurement Notes

Verify the specific ordering suffix NETA+ corresponds to the required I²C address configuration (010110A) and lead-free RoHS compliance status. Confirm package dimensions match the 3mm x 3mm 8-pin TDFN specification before integration into PCB layouts.

Selection Notes

Select this component when a 50kΩ variable resistor is needed with persistent state storage. Ensure the system voltage remains within the 2.7V to 5.25V range. Verify that the I²C bus pull-up resistors are correctly sized for the 400kbps clock frequency requirement.

Part Context

This part belongs to the MAX5417/MAX5418/MAX5419 family of digital potentiometers. While sharing identical architecture and interface protocols, the MAX5417NETA+ is distinguished by its 50kΩ resistance value and specific factory-programmed slave address bits.

Replacement Considerations

Compatible substitutes include other MAX5417 variants with different addresses (LETA+, META+, PETA+) or the MAX5418/MAX5419 if resistance values differ. Cross-model replacements require verifying I²C address conflicts on the shared bus.