MAX6126B50+

Overview

The MAX6126B50+ is a series-mode voltage reference from Analog Devices/Maxim Integrated, providing a fixed 5.000V output. It features B-grade initial accuracy of ±0.06% and a maximum temperature coefficient of 10ppm/°C over the -40°C to +125°C automotive range. The device operates with a supply voltage range of 5.2V to 12.6V and draws a typical quiescent current of 380μA. It supports up to 10mA sink/source load current with a maximum dropout voltage of 400mV at full load.

Feature Summary

• Ultra-low noise architecture producing low flicker and wideband noise without increased supply current
• Curvature-correction circuitry combined with laser-trimmed thin-film resistors for high stability
• Independent force and sense outputs (OUTF/OUTS) enabling remote sensing to cancel line drops

Applications

• High-Resolution A/D and D/A Converters
• ATE Equipment
• Precision Current Sources
• Digital Voltmeters

Procurement Notes

Verify the specific package type required, as the MAX6126B50+ designation may correspond to either SO or µMAX packages depending on the manufacturer's suffix conventions. Confirm RoHS compliance status and ensure the supply voltage requirements align with the minimum input voltage specified for the 5V output variant. Check for lead-free packaging indicators in the ordering information.

Selection Notes

Select this component when a stable 5V reference is needed with moderate precision requirements. The B-grade specification offers a balance between cost and performance compared to A-grade options. Ensure the application can accommodate the minimum dropout voltage and that the load capacitance remains within the stable range of 0.1μF to 10μF.

Part Context

This part belongs to the MAX6126 family of ultra-high-precision, ultra-low-noise series voltage references. The family includes various output voltages and accuracy grades (A and B). The 'B' suffix denotes the B-grade accuracy tier, while '50' indicates the 5.000V output voltage option.

Replacement Considerations

Direct replacements include other MAX6126 variants such as MAX6126A50+ for higher accuracy or MAX6126BASA50+ for SO package compatibility. Verify pinout and thermal characteristics when substituting between µMAX and SO packages.