MAX6126A50+

Overview

The MAX6126A50+ is a series-mode voltage reference from Analog Devices/Maxim Integrated, housed in an 8-pin μMAX package. It provides a fixed 5V output with ±0.06% initial accuracy and a maximum temperature coefficient of 3ppm/°C over the -40°C to +85°C range. The device operates within a supply voltage range of 5.2V to 12.6V, drawing a typical quiescent current of 380μA. It supports up to 10mA sink/source load current and features low dropout characteristics.

Feature Summary

• Ultra-low noise architecture providing flicker noise as low as 1.3μVP-P without increased supply current
• Curvature-correction circuitry combined with laser-trimmed thin-film resistors for high stability
• Independent force and sense outputs (OUTF/OUTS) enable remote sensing to cancel line drops
• Stable operation guaranteed with capacitive loads ranging from 0.1μF to 10μF

Applications

• High-resolution A/D and D/A converters
• ATE equipment requiring stable references
• Precision current sources
• Digital voltmeters

Procurement Notes

Verify the specific suffix '+T' or absence thereof against the manufacturer's ordering guide, as it dictates packaging format such as tube or reel. Confirm that the 'A' grade designation matches the required ±0.06% accuracy specification for your design. Ensure the 8-pin μMAX footprint aligns with your PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when ultra-low noise and high precision are critical for signal chain integrity. The series-mode topology eliminates the need for external dropping resistors found in shunt references. Verify that the input voltage remains above the minimum dropout threshold relative to the 5V output under all operating conditions.

Part Context

This part belongs to the MAX6126 family of ultra-high-precision, ultra-low-noise series voltage references. The family utilizes proprietary curvature-correction circuitry and laser-trimmed thin-film resistors to achieve exceptional stability. Variants differ by output voltage, accuracy grade, and package type, covering automotive temperature ranges.

Replacement Considerations

Cross-reference with other MAX6126 variants sharing the same 5V output and 8-pin μMAX package. Verify that substitute parts maintain the required ±0.06% initial accuracy and 3ppm/°C temperature coefficient specifications.