MAX875BESA+T

Overview

The MAX875BESA+T is a precision voltage reference providing a fixed +5.0V output in an 8-pin SOIC package. It features a maximum initial accuracy of ±0.06% and a temperature coefficient of 20 ppm/°C over the -40°C to +85°C operating range. The device draws a maximum quiescent current of 450µA, sources up to 10mA, and sinks up to 2mA. It operates with supply voltages from +7V to +18V and includes a TRIM pin for voltage adjustment.

Feature Summary

• Provides a stable +5.0V reference with high initial accuracy and low temperature drift
• Includes a dedicated TEMP pin generating an output voltage proportional to die temperature
• Features a TRIM pin allowing output voltage adjustment via external resistive divider
• Offers short-circuit protection limiting output current when connected to ground

Applications

• 12-bit data-acquisition systems
• Digital multimeters
• Portable data-acquisition systems
• Low-power test equipment

Procurement Notes

Verify the specific suffix BESA+T against the manufacturer's official datasheet to confirm the exact accuracy grade (±0.06%) and package type. Ensure the input supply voltage remains within the specified operational limits (+7V to +18V) for proper regulation. Confirm that the required load current does not exceed the sourcing or sinking capabilities defined in the electrical characteristics table.

Selection Notes

Select this component when a fixed +5.0V reference is required with moderate precision and low power consumption. The 20 ppm/°C temperature coefficient suits applications where extreme stability is not critical. Consider the available TRIM functionality if fine-tuning the output voltage is necessary during system calibration. Verify compatibility with the target PCB footprint for the 8-SOIC package.

Part Context

This part belongs to the MAX873/MAX875/MAX876 family of low-power, low-drift precision voltage references. While sharing similar architecture and features, the MAX875 variant specifically provides a +5.0V output, distinguishing it from the +2.5V MAX873 and +10V MAX876 models. All members offer laser-trimmed thin-film resistors and curvature-correction circuits for improved performance.

Replacement Considerations

MAX875AESA+