MAX6126AASA50+T

Overview

The MAX6126AASA50+T is an ultra-high-precision, ultra-low-noise series voltage reference from Analog Devices. It provides a fixed 5V output with ±0.02% initial accuracy and a maximum temperature coefficient of 3ppm/°C. The device operates within a supply voltage range of 5.2V to 12.6V and draws a typical quiescent current of 380μA. It features a low dropout voltage of 200mV and supports sink/source currents up to 10mA. Packaged in an 8-pin SOIC, it functions reliably across the automotive temperature range of -40°C to +125°C.

Feature Summary

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

Applications

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

Procurement Notes

Verify the specific suffix 'AASA50+T' against official documentation to confirm the package type, grade, and output voltage. Ensure the ordering code matches the required automotive temperature range and RoHS compliance status. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a fixed 5V precision reference is required with minimal noise and high accuracy. The SOIC package suits surface-mount designs needing Kelvin connections. Consider the 380μA quiescent current and 200mV dropout for power-constrained or low-voltage headroom applications.

Part Context

This part belongs to the MAX6126 family of series-mode voltage references. The 'A' grade denotes superior initial accuracy and temperature coefficient compared to the 'B' grade. The 'SO' indicates an 8-pin small-outline package, while '+T' signifies tape-and-reel packaging for automated assembly.

Replacement Considerations

Direct substitutes include other MAX6126 variants with matching output voltages and grades, such as MAX6126AASA41+T for 4.096V. Verify pin compatibility and thermal characteristics before substitution.