MAX6126BASA21

Overview

The MAX6126BASA21 is a series voltage reference IC manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 4.096V with an initial accuracy tolerance of ±0.06%. The device operates within an input voltage range of 4.3V to 12.6V and delivers a maximum output current of 10 mA while consuming a supply current of 725µA. It features a temperature coefficient of 5ppm/°C and low noise performance of 2.4µVp-p from 0.1Hz to 10Hz. The component is housed in an 8-SOIC package (0.154" width) and supports an operating temperature range of -40°C to +125°C.

Feature Summary

• Ultra-high precision with ±0.06% initial accuracy
• Ultra-low noise performance for sensitive signal chains
• Wide operating temperature range suitable for industrial environments

Applications

• High-resolution analog-to-digital converter (ADC) references
• Precision data acquisition systems
• Industrial process control instrumentation

Procurement Notes

Verify the specific suffix 'BASA21' against official datasheets, as standard listings often use 'BASA41' for the 4.096V variant. Confirm availability status, as some distributors indicate limited stock or discontinuation for Maxim-branded parts. Ensure RoHS compliance documentation matches the specific manufacturing batch requirements for your assembly line.

Selection Notes

Select this part when high accuracy and low noise are critical for ADC driving applications. Compare the 5ppm/°C temperature coefficient against stricter requirements that might necessitate the A-grade variants. Consider the 10mA output capability for direct sensor powering versus external buffering needs.

Part Context

The MAX6126BASA21 belongs to the MAX6126 family of ultra-high-precision, ultra-low-noise series voltage references. This family is designed for demanding applications requiring stable reference voltages over wide temperature ranges. The B-grade designation indicates tighter initial accuracy specifications compared to lower grades in the same series.

Replacement Considerations

Public confirmed substitute part numbers: MAX6126BASA41/V+