MAX6126A21

Overview

The MAX6126A21 is an ultra-high-precision, ultra-low-noise series voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 2.048 V with an initial accuracy of ±0.02% and a temperature coefficient of 3 ppm/°C. The device operates within an input voltage range of 2.7 V to 12.6 V and supports a maximum load current of 10 mA. It functions reliably across an extended temperature range from -40°C to +125°C. The component is available in surface-mount packages including uMAX-8 and SOIC-8.

Feature Summary

• Ultra-low noise performance suitable for sensitive signal chains
• High initial accuracy with tight tolerance specifications
• Extended industrial temperature operation capability
• Compact surface-mount package options

Applications

• Precision analog front-end modules
• Battery measurement systems
• Cell-stack monitoring equipment
• Industrial data acquisition systems

Procurement Notes

Verify the specific suffix (e.g., T, +) against the official datasheet to confirm packaging type and compliance status. Confirm availability through authorized distributors as supply may be restricted. Ensure the selected package variant matches the PCB footprint requirements. Validate that the operating conditions align with the specified electrical limits.

Selection Notes

Select this component when low noise and high precision are critical for maintaining signal integrity in measurement applications. Consider the package size constraints when choosing between uMAX-8 and SOIC-8 variants. Evaluate the power supply voltage range to ensure compatibility with the system architecture. Verify thermal management needs for operation at the upper temperature limit.

Part Context

This part belongs to the MAX6126 family of precision voltage references designed for demanding analog applications. The family offers various output voltages and package configurations to suit different design requirements. These references are commonly used in instrumentation and control systems where stability and accuracy are paramount.

Replacement Considerations

Check for direct pin-compatible substitutes within the same product family. Verify that alternative components meet or exceed the required noise and accuracy specifications. Ensure the replacement package matches the existing board layout constraints.