MAX5496ETE+T

Overview

The MAX5496ETE+T is a dual, nonvolatile, linear-taper digital potentiometer featuring 10-bit (1024-tap) resolution. It functions as two independent variable resistors with an end-to-end resistance of 10kΩ and a temperature coefficient of 35ppm/°C. The device utilizes a 3-wire SPI-compatible serial interface for data rates up to 7MHz. Operating on a single supply from +2.7V to +5.25V or dual supplies of ±2.5V, it consumes 1.5µA maximum in standby mode. Wiper positions are stored in internal EEPROM, ensuring initialization upon power-up. The component is housed in a space-saving 16-pin TQFN package.

Feature Summary

• Dual 10-bit variable resistors with 1024 tap points
• Nonvolatile memory retains wiper position during power loss
• 3-wire SPI-compatible serial interface supporting 7MHz clock
• Low standby current of 1.5µA maximum

Applications

• Gain and offset adjustment circuits
• LCD contrast voltage control
• Pressure sensor signal conditioning
• Mechanical potentiometer replacement

Procurement Notes

Verify the ordering suffix '+T' corresponds to the tape-and-reel packaging format when sourcing components. Confirm that the specific revision matches the required electrical characteristics for the target operating temperature range of -40°C to +85°C. Ensure compatibility with the 16-pin TQFN footprint during PCB layout verification.

Selection Notes

Select this model specifically for applications requiring dual variable resistor configurations rather than programmable voltage dividers. The 10kΩ resistance value suits moderate impedance networks. Verify that the system requires nonvolatile storage to maintain calibration settings across power cycles without external backup batteries.

Part Context

This component belongs to the MAX5494–MAX5499 family of 10-bit digital potentiometers. While sharing the same core architecture and interface, the MAX5496 variant is distinctively configured as dual variable resistors, whereas siblings like the MAX5494 offer dual voltage dividers. This differentiation allows designers to choose the precise terminal configuration needed for their analog signal path.

Replacement Considerations

The MAX5494ETE+ offers identical electrical specifications but provides dual voltage divider functionality instead of variable resistors. Designers must verify if the circuit topology can accommodate the additional low terminal access provided by the voltage divider configuration.