MAX6126BASA30+

Overview

The MAX6126BASA30+ is a series voltage reference from Analog Devices/Maxim Integrated, housed in an 8-pin SO package. It provides a fixed output of 3V with a maximum initial accuracy of ±0.06% and a maximum temperature coefficient of 5ppm/°C over the -40°C to +85°C range. The device operates within a supply voltage range of 3.2V to 12.6V, drawing a typical quiescent current of 380µA. It supports up to 10mA sink/source current capability and features low dropout voltage characteristics.

Feature Summary

• Features curvature-correction circuitry and laser-trimmed thin-film resistors for high precision.
• Provides independent force and sense outputs (OUTF and OUTS) for remote sensing applications.
• Operates with virtually constant supply current regardless of input voltage variations.
• Capable of driving capacitive loads ranging from 0.1µF to 10µF without oscillation.

Applications

• High-resolution analog-to-digital and digital-to-analog converters
• Automated test equipment requiring stable references
• Precision current sources utilizing Kelvin connections
• Digital voltmeters and high-accuracy industrial process control systems

Procurement Notes

Verify the specific suffix 'SA' indicates the 8-pin SO package variant when sourcing. Confirm that the 'B' grade designation aligns with the required ±0.06% accuracy and 5ppm/°C temperature coefficient specifications for your application environment. Ensure the operating supply voltage remains above the minimum threshold defined by the datasheet for the 3V output version.

Selection Notes

Select this component when a fixed 3V reference is needed with better than ±0.06% initial accuracy. The B-grade specification offers a balance between cost and performance compared to A-grade parts. Consider the 8-pin SO package for standard surface-mount assembly processes. Verify that the load regulation and line regulation requirements fit within the guaranteed limits provided in the electrical characteristics table.

Part Context

This part belongs to the MAX6126 family of ultra-low-noise, high-precision series voltage references. The family utilizes proprietary architecture to achieve low flicker noise without increasing supply current. Other variants in the series offer different output voltages such as 2.048V, 2.5V, and 5V, and are available in both µMAX and SO packages with varying accuracy grades.

Replacement Considerations

Direct substitutes include other MAX6126BASA30+ units or equivalent B-grade 3V references from the same manufacturer. Cross-referencing should focus on matching the 8-pin SO footprint, 3V output, and ±0.06% accuracy class. Verify pinout compatibility, specifically the placement of the noise reduction pin and ground sense connections.