MAX6133BASA30+

Overview

The MAX6133BASA30+ is a high-precision, low-power, low-dropout series voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output of 3.000V with an initial accuracy of ±0.08% and a maximum temperature coefficient of 5ppm/°C. The device operates within a supply voltage range of 3.2V to 12.6V and consumes a typical quiescent current of 40µA. It features a dropout voltage of 200mV (max) and supports source currents up to 15mA. Packaged in an 8-pin SOIC-Narrow format, it functions reliably across temperatures from -40°C to +125°C.

Feature Summary

• Bandgap technology ensures low-noise performance and excellent accuracy through laser-trimmed thin-film resistors and post-package trimming.
• Series-mode design minimizes external component requirements and system power consumption compared to shunt references.
• Low dropout voltage capability allows operation with minimal headroom between input and output voltages.
• Quiescent supply current remains virtually independent of the supply voltage, maximizing efficiency.

Applications

• Precision regulators
• A/D and D/A converters
• Power supplies

Procurement Notes

Verify the specific suffix '30' confirms the 3.000V output option. Confirm the 'SA' designation matches the required 8-pin SO package variant. Check for discontinuance notices as this product line may have limited availability or end-of-life status. Ensure RoHS compliance documentation aligns with project requirements.

Selection Notes

Select this part when a fixed 3V precision reference is needed with tight initial accuracy and low temperature drift. Consider the 5ppm/°C temperature coefficient limit for wide operating ranges. Evaluate the 40µA supply current against battery life constraints. Verify that the 15mA source current capability meets load demands without exceeding regulation limits.

Part Context

This component belongs to the MAX6133 family of high-precision voltage references. The family includes variants with different output voltages (2.5V, 4.096V, 5.0V) and packages (µMAX, SO). The B-grade designation indicates specific accuracy and temperature coefficient tolerances distinct from A-grade options within the same series.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.