MAX5482ETE+T

Overview

The MAX5482ETE+T is a 10-bit nonvolatile linear-taper digital potentiometer configured as a programmable voltage divider. It features a 50kΩ end-to-end resistance and 1024 tap positions, controlled via a pin-selectable 3-wire SPI-compatible serial interface or an up/down digital interface. The device includes internal EEPROM to store the wiper position for power-on recall. It operates on a single +2.7V to +5.25V supply or ±2.5V dual supplies, with a maximum standby current of 1µA. The unit is housed in a 16-pin TQFN package and specified over an extended temperature range of -40°C to +85°C.

Feature Summary

• 10-bit resolution providing 1024 distinct tap positions
• Nonvolatile memory retains wiper position across power cycles
• Pin-selectable 3-wire SPI or Up/Down digital control interface
• Low standby supply current of 1µA (max)
• Extended temperature operation from -40°C to +85°C

Applications

• Low-drift programmable gain amplifiers
• Liquid crystal display (LCD) contrast adjustment
• Pressure sensor signal conditioning
• Gain and offset adjustment circuits
• Mechanical potentiometer replacement

Procurement Notes

Verify that the ordering suffix '+T' corresponds to tape-and-reel packaging when sourcing components. Confirm the 'E' designation indicates lead-free/RoHS compliance. Ensure the component is sourced from authorized distributors to guarantee authenticity and traceability for the Analog Devices/Maxim Integrated product line.

Selection Notes

Select the MAX5482 variant specifically for applications requiring a 50kΩ end-to-end resistance; the MAX5481 offers 10kΩ. Use this model when a voltage-divider configuration is required rather than a variable resistor. Verify that the system supports either the SPI or Up/Down interface mode via the SPI/UD pin selection.

Part Context

This component belongs to the MAX5481–MAX5484 family of 10-bit nonvolatile digital potentiometers manufactured by Maxim Integrated, now part of Analog Devices Inc. The MAX5482 specifically denotes the 50kΩ voltage-divider version within this series, distinguished from the 10kΩ MAX5481 and the variable-resistor variants MAX5483/MAX5484.

Replacement Considerations

Direct functional replacements within the same family include the MAX5481 (10kΩ), MAX5483 (10kΩ variable resistor), and MAX5484 (50kΩ variable resistor). Cross-family replacements require matching the 10-bit resolution, nonvolatile storage capability, and compatible supply voltage ranges.