MAX5482ETE+

Overview

The MAX5482ETE+ is a 10-bit (1024-tap) nonvolatile linear-taper digital potentiometer configured as a programmable voltage divider. It features a 50kΩ end-to-end resistance with a nominal temperature coefficient of 35ppm/°C and a ratiometric coefficient of 5ppm/°C. The device operates on a single +2.7V to +5.25V supply or ±2.5V dual supplies, consuming 1µA max standby current. It includes an internal EEPROM for power-on wiper recall and supports pin-selectable 3-wire SPI-compatible serial or up/down digital interfaces.

Feature Summary

• 10-bit resolution providing 1024 tap positions for precise voltage division
• Nonvolatile memory stores wiper position for initialization during power-up
• Pin-selectable interface: 3-wire SPI-compatible serial or up/down digital control
• Low standby supply current of 1µA maximum

Applications

• Low-drift programmable gain amplifiers
• LCD contrast adjustment circuits
• Pressure sensor signal conditioning
• Gain and offset adjustment systems
• Mechanical potentiometer replacement

Procurement Notes

Verify the package type matches the design requirements, as the MAX5482 series is available in both 16-pin TQFN and 14-pin TSSOP configurations. Confirm that the specific ordering suffix corresponds to the desired packaging format before finalizing procurement orders.

Selection Notes

Select the MAX5482ETE+ when a 50kΩ end-to-end resistance is required for voltage divider applications. Ensure the system utilizes high-impedance loads at the wiper terminal to maintain linearity specifications, as this device is not intended for current flow through the wiper contact.

Part Context

This component belongs to the MAX5481–MAX5484 family of 10-bit nonvolatile digital potentiometers. While the MAX5481 offers 10kΩ resistance, the MAX5482 specifically provides 50kΩ end-to-end resistance. Both are designed as voltage dividers, distinct from the MAX5483/MAX5484 variable resistor variants.

Replacement Considerations

Direct functional replacements within the same family include the MAX5481ETE+ for lower resistance requirements. For variable resistor configurations, consider the MAX5484ETE+. Verify interface compatibility and resistance values when substituting.