MAX6226ALA50+T

Overview

The MAX6226ALA50+T is an ultra-low-noise, high-precision series voltage reference with a fixed 5.0V output. It features a maximum temperature coefficient of 3ppm/°C and initial accuracy of ±0.02%. The device operates from a supply voltage range of 5.2V to 12.6V with a typical quiescent current of 380µA. It provides 10mA sink/source capability and includes force/sense outputs for remote sensing. Packaged in an 8-pin hermetically sealed ceramic LCC, it supports capacitive loads from 0.1µF to 10µF.

Feature Summary

• Hermetically sealed 8-pin ceramic package eliminates humidity-induced drift and mechanical stress effects on the die.
• Ultra-low noise architecture produces flicker noise of 1.45µVP-P (0.1Hz to 10Hz) without increasing supply current.
• Independent force and sense outputs enable Kelvin connections to cancel trace voltage drops for remote sensing applications.
• Low dropout voltage allows operation with minimal input-to-output differential while maintaining regulation.

Applications

• High-resolution analog-to-digital and digital-to-analog converters
• Precision current sources using external transistors
• Automotive instrumentation and process control systems
• High-accuracy reference standards and ATE equipment

Procurement Notes

Verify the specific ordering suffix matches the required tape-and-reel packaging configuration. Confirm that the 8-pin LCC footprint aligns with the provided land pattern specifications. Ensure the design accounts for the minimum input voltage requirement relative to the 5.0V output to maintain proper dropout margins during operation.

Selection Notes

Select this component when low noise and high precision are critical within automotive temperature ranges. The ceramic package offers superior long-term stability compared to plastic alternatives. Consider the 10mA drive capability and independent sense pins if load regulation accuracy across PCB traces is a primary design constraint.

Part Context

This part belongs to the MAX6226 family of ultra-high-precision series voltage references. It shares architectural similarities with other members like the MAX6226ALA25+T and MAX6226ALA33+T, differing primarily in the fixed output voltage setting. All variants utilize the same 8-pin hermetic ceramic package and laser-trimmed thin-film resistor technology.

Replacement Considerations

Direct functional substitutes include MAX6226ALA25+T and MAX6226ALA33+T from the same family, which share identical pinouts and performance characteristics but provide different fixed output voltages.