MAX6126BASA25+

Overview

The MAX6126BASA25+ is a series-mode voltage reference from Analog Devices Inc./Maxim Integrated, housed in an 8-pin SO package. It provides a fixed output voltage of 2.500V with a maximum initial accuracy of ±0.06%. The device features a maximum temperature coefficient of 5ppm/°C over the -40°C to +85°C range and operates within a supply voltage range of 3.0V to 12.6V. Quiescent supply current is typically 380µA at +25°C, rising to a maximum of 725µA across the full -40°C to +125°C operating temperature range. It supports up to 10mA sink/source current.

Feature Summary

• Features curvature-correction circuitry and laser-trimmed thin-film resistors for high precision.
• Provides independent force (OUTF) and sense (OUTS) outputs for remote sensing capability.
• Operates with low dropout voltage as low as 200mV.
• Stable with capacitive loads ranging from 0.1µF to 10µF.

Applications

• High-Resolution A/D and D/A Converters
• Precision Current Sources
• Digital Voltmeters
• High-Accuracy Industrial and Process Control

Procurement Notes

Verify the specific suffix 'BASA' indicates the B-grade accuracy and SOIC package configuration. Confirm the '+/' designation aligns with lead-free/RoHS compliance requirements for your assembly process. Check manufacturer documentation for any obsolescence notices or lifecycle status changes prior to finalizing procurement plans.

Selection Notes

Select this component when a 2.500V reference with ±0.06% initial accuracy is required. Ensure the application can accommodate the 3.0V minimum input voltage relative to the 2.500V output. Consider the 5ppm/°C temperature coefficient if operation extends beyond +85°C, as drift increases at higher temperatures.

Part Context

This part belongs to the MAX6126 family of ultra-low-noise, high-precision series voltage references. The family offers various output voltages and packages, including µMAX and SO. The 'B' grade denotes ±0.06% accuracy, while the 'A' grade offers ±0.02%. This specific model uses the standard 8-pin SO package.

Replacement Considerations

Direct substitutes include other MAX6126 variants with different accuracies or packages, such as MAX6126AASA25+ (A-grade, SO) or MAX6126BASA25+T (tape & reel). Verify pin compatibility and electrical specifications match before substitution.