MAX5483EUD+

Overview

The MAX5483EUD+ is a 10-bit, nonvolatile, linear-taper digital potentiometer manufactured by Analog Devices (Maxim Integrated). It functions as a variable resistor with an end-to-end resistance of 10kΩ and ±25% tolerance. The device features 1024 tap positions controlled via a pin-selectable 3-wire SPI-compatible serial interface or up/down digital interface. It includes internal EEPROM for power-on recall of the wiper position. Operating from a single +2.7V to +5.25V supply or dual ±2.5V supplies, it consumes 1.0µA maximum standby current. The component is housed in a 14-pin TSSOP package and operates over an extended temperature range of -40°C to +85°C.

Feature Summary

• 10-bit resolution providing 1024 distinct tap positions
• Nonvolatile EEPROM memory retains wiper position upon power-up
• Pin-selectable 3-wire SPI-compatible serial or up/down digital interface
• Low standby supply current of 1.0µA maximum

Applications

• Mechanical potentiometer replacement
• Low-drift programmable gain amplifiers
• LCD contrast adjustment
• Pressure sensor signal conditioning

Procurement Notes

Verify the 'E' suffix indicates the TSSOP-14 package and the '+' suffix confirms lead-free/RoHS compliance. Confirm the specific resistance value corresponds to the MAX5483 variant (10kΩ) rather than the MAX5484 (50kΩ). Ensure the source document matches the official Maxim Integrated datasheet for accurate electrical specifications.

Selection Notes

Select the MAX5483EUD+ when a 10kΩ variable resistor configuration is required. Choose this part over voltage-divider variants (MAX5481/MAX5482) if current must flow through the wiper terminal. Verify that the system requires a 10-bit resolution and nonvolatile storage capability. Ensure the operating voltage range fits within +2.7V to +5.25V single supply or ±2.5V dual supply constraints.

Part Context

The MAX5483EUD+ belongs to the MAX5481–MAX5484 family of 10-bit nonvolatile digital potentiometers. While the MAX5481 and MAX5482 are configured as 3-terminal voltage dividers, the MAX5483 and MAX5484 function as 2-terminal variable resistors. This family replaces mechanical potentiometers with digitally controlled alternatives featuring low temperature coefficients and high reliability.

Replacement Considerations

Direct functional replacements within the same family include the MAX5481EUD+, MAX5482EUD+, and MAX5484EUD+. Note that MAX5481/MAX5482 are voltage dividers and MAX5484 has a 50kΩ resistance; only MAX5483 provides the identical 10kΩ variable resistor topology.