MAX5495ETE+T

Overview

The MAX5495ETE+T is a dual, nonvolatile, linear-taper digital potentiometer featuring 10-bit (1024-tap) resolution. It functions as two programmable voltage dividers with a 50kΩ end-to-end resistance and a 35ppm/°C temperature coefficient. The device utilizes an internal EEPROM to store wiper positions for power-up initialization. It operates on a single supply of +2.7V to +5.25V or dual supplies of ±2.5V, consuming 1.5µA max standby current. Communication occurs via a 3-wire SPI-compatible serial interface at speeds up to 7MHz. The component is housed in a 16-pin TQFN package.

Feature Summary

• Dual 10-bit programmable voltage dividers with 50kΩ end-to-end resistance
• Nonvolatile memory retains wiper position upon power-up
• 3-wire SPI-compatible serial interface supporting 7MHz clock rates
• Low standby current of 1.5µA maximum

Applications

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

Procurement Notes

Verify the 'T' suffix indicates tape-and-reel packaging when sourcing. Confirm the specific resistor value corresponds to the MAX5495 designation (50kΩ) rather than the MAX5494 (10kΩ). Ensure the operating environment remains within the specified -40°C to +85°C range for guaranteed performance.

Selection Notes

Select this model over the MAX5494 if a higher 50kΩ end-to-end resistance is required. Verify that the application does not draw significant current through the wiper terminal, as the device is designed for high-impedance voltage divider applications. Ensure the system voltage falls between 2.7V and 5.25V for single-supply operation.

Part Context

This component belongs to the MAX5494–MAX5499 family of 10-bit digital potentiometers. While sharing identical pinouts and interfaces, the MAX5495 specifically provides dual 50kΩ voltage dividers. It differs from the MAX5496/MAX5497, which are configured as variable resistors, and the MAX5498/MAX5499, which combine one voltage divider and one variable resistor.

Replacement Considerations

The MAX5494ETE+ serves as a direct functional substitute if a 10kΩ resistance value is acceptable. Other family members like the MAX5496ETE+ offer different terminal configurations (variable resistors) but share the same package and interface.