Maxim Integrated MAX5494ETE+ Precision Resistor-Divider

The Maxim Integrated MAX5494ETE+ is a high-precision, nonvolatile, programmable resistor-divider designed for a wide range of applications requiring digitally controlled resistance settings. This innovative component is part of Maxim's portfolio of precision integrated circuits, which are known for their reliability and performance.

The MAX5494ETE+ features a 1024-tap, low-drift, 3ppm/°C typical temperature-coefficient resistor ladder with a total end-to-end resistance of 100kΩ. This precision is essential for applications that demand stable and accurate resistance settings, such as calibration circuits, adjustable power supplies, and gain control in precision amplifiers.

One of the key advantages of the MAX5494ETE+ is its nonvolatile memory (EEPROM), which allows the device to retain the programmed resistance value even after power is removed. This makes it ideal for settings that need to be preserved between power cycles, such as system calibrations and user preferences.

The device operates from a single supply voltage of +2.7V to +5.5V, making it suitable for both 3V and 5V systems. It communicates via a simple SPI-compatible serial interface, allowing for easy integration into digital systems. Additionally, the MAX5494ETE+ offers a write-protect feature that prevents accidental changes to the resistance setting, ensuring system stability.

Encased in a compact 16-pin TQFN package, the MAX5494ETE+ is designed to save space on printed circuit boards (PCBs) and is specified for the extended temperature range of -40°C to +85°C, which guarantees operation in harsh environments.

Applications that can benefit from the features of the MAX5494ETE+ include:

• Automated equipment calibration
• Adjustable power supplies and voltage dividers
• Precision gain setting in analog circuits
• Portable instrumentation
• Industrial process control systems

Overall, the Maxim Integrated MAX5494ETE+ is an excellent choice for designers looking for a reliable, precise, and easy-to-use programmable resistor-divider. With its nonvolatile memory and robust design, it provides consistent performance and ease of use, making it a valuable component in precision electronic systems.