MAX6126BASA41+T

Overview

The MAX6126BASA41+T is a series-mode voltage reference from Analog Devices/Maxim Integrated, housed in an 8-pin SOIC package. It provides a fixed output of 4.096V with B-grade initial accuracy of ±0.06%. The device features a maximum temperature coefficient of 5ppm/°C (TA = -40°C to +85°C) and operates over an extended temperature range of -40°C to +125°C. It supports a supply voltage range from 4.3V to 12.6V, draws a typical quiescent current of 380µA, and delivers up to 10mA of sink/source current capability.

Feature Summary

• Ultra-low noise architecture with flicker noise as low as 2.4µVP-P (0.1Hz to 10Hz) for the 4.096V output
• Force and sense outputs enable remote sensing to cancel line drops
• Stable with capacitive loads ranging from 0.1µF to 10µF
• Low dropout voltage of approximately 400mV at maximum load

Applications

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

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing this component. Confirm that the B-grade designation corresponds to the required ±0.06% accuracy and 5ppm/°C temperature coefficient specifications for your design. Ensure the input voltage remains within the guaranteed 4.3V to 12.6V range for proper operation.

Selection Notes

Select this part when high precision and low noise are critical for analog signal chains. The series-mode configuration eliminates the need for external resistors found in shunt references. Consider the 4.096V output specifically for interfacing with ADCs requiring standard reference levels. Verify thermal management requirements given the operating temperature range and power dissipation limits.

Part Context

This component belongs to the MAX6126 family of ultra-high-precision, ultra-low-noise voltage references. The family includes various output voltages and grades (A and B) across SO and µMAX packages. The MAX6126BASA41+T represents the B-grade version with 4.096V output in an 8-pin SOIC format, offering a balance of performance and cost-effectiveness for industrial applications.

Replacement Considerations

Direct replacements include other MAX6126 variants such as MAX6126BASA41+ (tube packaging) or MAX6126AASA41+ for tighter accuracy. Cross-family alternatives like the MAX6127 should be evaluated if higher current drive is needed.