MAX6126AASA21+T

Overview

The MAX6126AASA21+T is an ultra-low-noise, high-precision series voltage reference from Analog Devices/Maxim Integrated. It provides a fixed output of 2.048V with an initial accuracy of ±0.02% and a maximum temperature coefficient of 3ppm/°C. The device operates within a supply voltage range of 2.7V to 12.6V and draws a typical quiescent current of 380μA. It features low dropout voltage, stable operation with capacitive loads between 0.1μF and 10μF, and includes force/sense outputs for remote sensing. The component is housed in an 8-pin SO package.

Feature Summary

• Ultra-low flicker noise architecture producing minimal low-frequency interference
• Curvature-correction circuitry ensures high stability across temperature variations
• Independent force and sense outputs enable precise remote voltage regulation
• Low dropout design allows efficient operation with minimal input-output differential

Applications

• High-resolution analog-to-digital and digital-to-analog converters
• Automated test equipment requiring stable reference standards
• Precision current sources for industrial process control
• Digital voltmeters demanding high measurement accuracy

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing this part number. Confirm that the 'A' grade designation matches the required ±0.02% initial accuracy specification for your application. Ensure the 8-pin SO package footprint aligns with your PCB layout requirements before finalizing procurement orders.

Selection Notes

Select this component when ultra-low noise performance is critical for signal integrity in precision measurement systems. The wide supply voltage range accommodates various power architectures without external level shifting. Consider the thermal hysteresis characteristics if the device will undergo significant temperature cycling during operation.

Part Context

This part belongs to the MAX6126 family of series voltage references designed for high-performance applications. The family utilizes laser-trimmed thin-film resistors and proprietary low-noise architecture to achieve superior specifications compared to conventional shunt references. The A-grade variant offers tighter accuracy tolerances than standard B-grade options.

Replacement Considerations

MAX6126BASA21+ offers similar functionality with relaxed accuracy and temperature coefficient specifications.