MAX5434PEZT+T

Overview

The MAX5434PEZT+T is a single-channel, nonvolatile digital potentiometer featuring 32 tap positions and a linear taper. 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 0.5µA. Communication is handled via a fast-mode I²C-compatible serial interface supporting data rates up to 400kbps. An internal EEPROM retains the wiper position upon power-up, ensuring immediate recall of the stored setting.

Feature Summary

• Nonvolatile memory stores wiper position for power-on recall
• Fast-mode I²C serial interface (up to 400kbps)
• Single-supply operation (+2.7V to +5.25V)
• Linear taper with 32 tap points

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's selector guide to confirm package type and factory-preset I²C address. Ensure the selected variant matches the required pin configuration and bus addressing constraints for the target application design.

Selection Notes

Select this component when a variable resistor configuration is required, as the high terminal is internally connected to the wiper. For voltage-divider applications requiring separate high and low terminals, consider the MAX5432 or MAX5433 variants instead. Confirm that the 50kΩ resistance value aligns with the circuit's impedance requirements.

Part Context

This part belongs to the MAX5432–MAX5435 family of 32-tap, nonvolatile, linear digital potentiometers. The MAX5434 specifically denotes the 50kΩ version packaged in a 6-pin thin SOT23 format. It shares the same core architecture and interface protocols as the other members of the series, differing primarily in resistance value and terminal availability.

Replacement Considerations

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