MAX5435LEZT+T

Overview

The MAX5435LEZT+T is a nonvolatile, linear-taper digital potentiometer featuring 32 tap points and an end-to-end resistance of 100kΩ. It utilizes a fast-mode I²C-compatible serial interface for communication at data rates up to 400kbps. The device incorporates internal EEPROM to recall the wiper position upon 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 6-pin thin SOT-23 package and is specified for operation over an extended temperature range of -40°C to +85°C.

Feature Summary

• Nonvolatile memory retains wiper position after power loss
• I²C-compatible serial interface with 400kbps data rate
• 100kΩ end-to-end resistance with 32 tap positions
• Low standby current of 500nA (typical)

Applications

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

Procurement Notes

Verify the specific factory-preset I²C address associated with the 'L' suffix against system bus requirements. Confirm that the 6-pin thin SOT-23 package dimensions align with the target PCB footprint. Ensure the selected application operates within the specified -40°C to +85°C temperature range and voltage limits.

Selection Notes

Select this model when a 100kΩ variable resistor configuration is required, as the H terminal is internally connected to the wiper. Compare against the MAX5434LEZT+T if a 50kΩ resistance value is needed instead. Verify that the I²C address assigned by the 'L' suffix does not conflict with other devices on the same bus.

Part Context

This component belongs to the MAX5432–MAX5435 family of 32-tap, nonvolatile, linear digital potentiometers. The MAX5435 variant specifically provides a 100kΩ resistance value. While the MAX5432 and MAX5433 utilize an 8-pin TDFN package, the MAX5434 and MAX5435 are available in a compact 6-pin thin SOT-23 package.

Replacement Considerations

The MAX5434LEZT+T serves as a functional substitute if a 50kΩ resistance value is acceptable. Other family members like the MAX5432LETA+ offer identical functionality but require an 8-pin TDFN package.