MAX6126A25+T

Overview

The MAX6126A25+T is an ultra-low-noise, high-precision series voltage reference in an 8-pin uMAX package. It provides a fixed 2.5V output with ±0.06% initial accuracy and a maximum temperature coefficient of 3ppm/°C over the -40°C to +85°C range. The device operates from a supply voltage between 2.7V and 12.6V, drawing a typical quiescent current of 380µA. It supports up to 10mA sink/source current capability and features low dropout voltage.

Feature Summary

• Features curvature-correction circuitry and laser-trimmed thin-film resistors for high stability
• Provides independent force and sense outputs (OUTF and OUTS) for remote sensing applications
• Capable of sourcing and sinking up to 10mA while maintaining stable regulation
• Operates with load capacitance ranging from 0.1µF to 10µF without oscillation

Applications

• High-resolution A/D and D/A converters
• ATE equipment requiring precise voltage standards
• Precision current sources utilizing Kelvin connections
• Digital voltmeters and high-accuracy industrial process control systems

Procurement Notes

Verify the specific suffix '+T' indicates tape-and-reel packaging when ordering. Confirm that the 'A' grade designation matches the required ±0.06% initial accuracy specification. Ensure the uMAX-8 package footprint aligns with the target PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when low noise and high precision are critical requirements. The series-mode architecture eliminates the need for external biasing resistors found in shunt references. Consider the wide input voltage range and low dropout characteristics for battery-powered or variable supply designs.

Part Context

This part belongs to the MAX6126 family of ultra-high-precision voltage references. The family includes various output voltages and grades (A and B) across SO and uMAX packages. The MAX6126A25+T specifically denotes the A-grade version with 2.5V output in reel packaging.

Replacement Considerations

Direct substitutes within the same family include MAX6126B25+T for relaxed accuracy requirements. Other voltage options like MAX6126A21+T or MAX6126A30+T share identical pinouts and performance characteristics aside from the nominal output voltage.