MAX6225AEPA

Overview

The MAX6225AEPA+ is a low-noise, precision voltage reference utilizing buried-zener technology. It provides a fixed output of 2.500V with an initial accuracy of ±0.02% and a maximum temperature coefficient of 3.0ppm/°C. The device operates within an input voltage range of 8V to 36V and supports source/sink currents up to 15mA. It features a supply current of approximately 1.8mA and operates across a temperature range of -40°C to +85°C in an 8-pin Plastic DIP package.

Feature Summary

• Buried-zener technology ensures extremely low noise performance for high-resolution data conversion systems.
• Offers excellent line and load regulation with stable operation under all capacitive loads.
• Includes optional external trimming and noise reduction capabilities via dedicated pins.

Applications

• High-Resolution Analog-to-Digital and Digital-to-Analog Converters
• High-Accuracy Reference Standard
• Digital Voltmeters
• Precision Current Sources

Procurement Notes

Verify the specific suffix 'EPA' confirms the -40°C to +85°C industrial temperature range and 8-pin PDIP package. Confirm RoHS compliance status indicated by the '+' symbol. Check manufacturer discontinuance notifications as this series may have limited availability or end-of-life status depending on the production date.

Selection Notes

Select the MAX6225AEPA+ when a fixed 2.5V reference is required with low drift over temperature. Compare against the MAX6241 (4.096V) or MAX6250 (5V) if different voltage levels are needed. Ensure the 8-pin DIP footprint matches the PCB layout requirements compared to SOIC alternatives.

Part Context

This component belongs to the MAX6225/MAX6241/MAX6250 family of low-noise precision voltage references manufactured by Maxim Integrated, now part of Analog Devices Inc. The family shares identical pinouts and core technologies, differing primarily in output voltage settings and available package options.

Replacement Considerations

Direct functional substitutes include MAX6225ACPA+, MAX6225BCPA+, MAX6225AESA+, and MAX6225BEPA+. Verify that alternative packages maintain compatibility with existing board layouts and thermal constraints.

FAQ

How can the output noise be reduced?

Connect a 1µF capacitor between the NR pin and ground to augment wideband noise reduction.

Is the device stable with capacitive loads?

Yes, the MAX6225AEPA+ is stable with capacitive load values ranging from 0µF to 100µF for all load currents.