MAX6133A50

Overview

The MAX6133A50 is a low-power, low-dropout series voltage reference manufactured by Analog Devices Inc. (Maxim Integrated). It provides a fixed output of 5V with an initial accuracy of ±0.04% and a temperature coefficient of 7ppm/°C. The device operates within an input voltage range of 5.2V to 12.6V, drawing a supply current of 85µA. It supports a maximum output current of 15mA and functions reliably across a temperature range of -40°C to +125°C. Available in an 8-SOIC package, it features low noise characteristics of 40µVp-p (0.1Hz to 10Hz) and 26µVrms (10Hz to 10kHz), ensuring high precision for sensitive analog circuits.

Feature Summary

• Ultra-low power consumption with only 85µA supply current
• High precision with ±0.04% initial accuracy and 7ppm/°C temperature coefficient
• Low-noise performance suitable for sensitive signal chains
• Wide operating temperature range from -40°C to +125°C

Applications

• Precision data acquisition systems
• Portable instrumentation requiring low power
• Medical equipment and battery-powered devices
• Industrial process control loops

Procurement Notes

Verify the specific suffix (e.g., AASA50+) against official datasheets to confirm package type and grade. Confirm availability status as distribution channels may list limited stock or obsolete status. Ensure compliance with RoHS directives if required for your application. Cross-reference pinouts carefully when replacing older variants.

Selection Notes

Select this component when high precision and low power are critical simultaneously. The 7ppm/°C drift offers stability superior to standard references. Consider the 8-SOIC package for PCB space constraints compared to larger through-hole options. Evaluate the 15mA drive capability against load requirements to ensure adequate margin without exceeding specifications.

Part Context

Part of the Maxim Integrated MAX6133 family of low-power voltage references. Designed for applications demanding high accuracy in small form factors. Complements other Maxim PMIC solutions for complete power management in portable electronics.

Replacement Considerations

Check for direct pin-compatible alternatives within the MAX6133 series with different output voltages or accuracies. Verify thermal performance and package dimensions before substituting with similar parts from other manufacturers.