MAX6126B41+T

Overview

The MAX6126B41+T is a series voltage reference providing a fixed output of 4.096V in an 8-pin uMAX package. It features a maximum initial accuracy of ±0.1% and a temperature coefficient of up to 7ppm/°C within the -40°C to +85°C range, extending to 12ppm/°C over the full -40°C to +125°C automotive temperature range. The device operates with a supply voltage between 4.3V and 12.6V, drawing a typical quiescent current of 380µA. It supports sink/source currents up to 10mA and includes force/sense outputs for remote sensing.

Feature Summary

• Features independent force (OUTF) and sense (OUTS) outputs to enable Kelvin connections that cancel voltage drops on connecting lines.
• Includes a dedicated noise reduction pin allowing wideband noise improvement via external capacitor addition.
• Operates with low dropout voltage as low as 200mV while maintaining stability 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 'T' indicates tape-and-reel packaging rather than tube. Confirm the 'B' grade designation corresponds to the required ±0.1% accuracy and 7ppm/°C tempco limits for your operating temperature range. Ensure the input voltage exceeds the minimum requirement of 4.3V for the 4.096V output variant.

Selection Notes

Select this component when high precision is required alongside low power consumption. The series architecture eliminates the need for external resistors found in shunt references. Consider the uMAX package size if board space is limited. Verify that the load capacitance requirements fall within the stable 0.1µF to 10µF range.

Part Context

This part belongs to the MAX6126 family of ultra-high-precision, ultra-low-noise series voltage references manufactured by Analog Devices/Maxim Integrated. The family utilizes curvature-correction circuitry and laser-trimmed thin-film resistors to achieve high stability across the automotive temperature range.

Replacement Considerations

Other variants within the MAX6126 family share similar electrical characteristics but differ in output voltage, accuracy grade, or package type. Verify compatibility regarding output voltage and thermal performance before substitution.