MAX5477ETE#TG16

Overview

The MAX5477ETE+ is a dual, nonvolatile, linear-taper digital potentiometer featuring an I2C-compatible serial interface. It provides 256 tap positions per potentiometer with a nominal end-to-end resistance of 10kΩ. The device operates on a single supply voltage ranging from +2.7V to +5.25V and draws a maximum static supply current of 1µA. It includes internal nonvolatile EEPROM for wiper position recall upon power-up and supports fast-mode communication at data rates up to 400kbps. The component is housed in a 16-pin, 3mm x 3mm x 0.8mm TQFN package with an exposed paddle.

Feature Summary

• Dual 256-tap nonvolatile digital potentiometers with 10kΩ nominal resistance
• Fast-mode I2C-compatible serial interface supporting up to 400kbps
• Power-on recall of wiper position from internal nonvolatile EEPROM
• EEPROM write protection via dedicated WP pin

Applications

• Mechanical potentiometer replacement
• Low-drift programmable-gain amplifier circuits
• Volume control systems
• Liquid-crystal display (LCD) contrast control

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and tape/reel configuration. Ensure the selected variant matches the required resistance value and temperature range specifications for the target application environment.

Selection Notes

Select this component for applications requiring precise, nonvolatile resistance adjustment via a standard two-wire interface. The 10kΩ resistance value and low temperature coefficient make it suitable for precision analog signal conditioning where mechanical wear must be eliminated.

Part Context

This part belongs to the MAX5477/MAX5478/MAX5479 family of dual, nonvolatile, I2C-interface digital potentiometers. The MAX5477 specifically denotes the 10kΩ variant within this series, which shares identical pinouts and functional characteristics with the 50kΩ (MAX5478) and 100kΩ (MAX5479) counterparts.

Replacement Considerations

Direct substitutes within the same family include MAX5478ETE+T (50kΩ) and MAX5479ETE+T (100kΩ). Other packages such as the 14-pin TSSOP (e.g., MAX5477EUD+) are available but require verification of pin compatibility and thermal performance differences.