MAX876BESA+

Overview

The MAX876BESA+ is a precision voltage reference providing a fixed +10V output in an 8-pin SOIC package. It features a maximum initial accuracy of ±0.05% and a temperature coefficient of 20 ppm/°C over the -40°C to +85°C operating range. The device draws a quiescent supply current of up to 700µA and supports a wide input voltage range from +12V to +18V. It offers line regulation of 6 ppm/V max and load regulation of 20 ppm/mA max when sourcing current. The output can source 10mA and sink 2mA, with short-circuit protection limiting current to 60mA.

Feature Summary

• Provides a stable +10V reference with laser-trimmed thin-film resistors for high accuracy
• Includes a dedicated TEMP pin generating an output voltage proportional to die temperature
• Features a TRIM pin allowing output voltage adjustment via an external potentiometer
• Incorporates internal short-circuit protection for robust operation under fault conditions

Applications

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

Procurement Notes

Verify the specific suffix 'E' indicates the SOIC-8 package and 'A+' denotes lead-free compliance per the manufacturer's ordering guide. Confirm that the B-grade variant meets the required ±0.05% initial accuracy specification for your design. Ensure the input supply voltage remains within the +12V to +18V operational window to maintain specified line regulation performance.

Selection Notes

Select this component when a fixed +10V precision reference is required with low power consumption. The B-grade version offers tighter initial accuracy compared to the A-grade. Consider the available TRIM functionality if fine-tuning the output voltage is necessary. The integrated temperature output simplifies compensation circuits without requiring additional sensors.

Part Context

This part belongs to the MAX873/MAX875/MAX876 family of low-power, low-drift precision voltage references. While the MAX873 provides +2.5V and the MAX875 provides +5V, the MAX876 specifically delivers +10V. All variants share similar architectural features, including curvature-correction circuits and BiCMOS processing, ensuring consistent performance characteristics across the series.

Replacement Considerations

Public confirmed substitute part numbers: None.