MAX5498ETE+T

Overview

The MAX5498ETE+T is a dual, nonvolatile, linear-taper digital potentiometer featuring one 2-terminal variable resistor and one 3-terminal programmable voltage-divider. It offers 10-bit resolution with 1024 tap points and an end-to-end resistance of 10kΩ. The device utilizes a 3-wire SPI-compatible serial interface for data rates up to 7MHz. It operates on a single supply from +2.7V to +5.25V or dual supplies of ±2.5V. Key electrical parameters include a standby current of 1.5µA max, a temperature coefficient of 35ppm/°C, and a ratiometric temperature coefficient of 5ppm/°C.

Feature Summary

• Dual configuration combining one 2-terminal variable resistor and one 3-terminal programmable voltage-divider
• Nonvolatile EEPROM stores wiper position for initialization upon power-up
• 10-bit resolution providing 1024 distinct tap positions
• Low standby supply current of 1.5µA maximum

Applications

• Gain and offset adjustment in signal conditioning circuits
• LCD contrast bias control
• Pressure sensor signal conditioning
• Low-drift programmable-gain amplifiers

Procurement Notes

Verify the component authenticity by checking the manufacturer marking against the official datasheet specifications. Confirm the package type is TQFN-EP-16 and the temperature range matches the extended industrial specification of -40°C to +85°C. Ensure the ordering suffix corresponds to the tape-and-reel packaging format if required for automated assembly processes.

Selection Notes

Select the MAX5498ETE+T when a mixed configuration of variable resistance and voltage division is required within a single package. Choose this part over the MAX5494 or MAX5495 if one channel must function as a two-terminal variable resistor while the other serves as a three-terminal divider. Verify that the 10kΩ end-to-end resistance aligns with the circuit's impedance requirements.

Part Context

This component belongs to the MAX5494–MAX5499 family of 10-bit, dual, nonvolatile digital potentiometers manufactured by Analog Devices / Maxim Integrated. The specific MAX5498 variant distinguishes itself by integrating one variable resistor channel and one voltage-divider channel, whereas other family members offer either two voltage-dividers or two variable resistors.

Replacement Considerations

The MAX5494ETE+T and MAX5495ETE+T are compatible alternatives within the same series but provide dual voltage-divider channels instead of the mixed configuration found in the MAX5498.