MAX281AEPA+

Overview

The MAX281AEPA+ is a precision, low-power voltage reference integrated circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It provides a stable output voltage of 2.5 V with an initial accuracy of 0.02% and a temperature coefficient of 3 ppm/°C. The device operates within a supply voltage range of 2.7 V to 36 V and draws a maximum supply current of 3.3 mA. It supports a maximum shunt current of 15 mA and functions reliably across an extended industrial temperature range from -40°C to +85°C. The component is housed in a standard PDIP-8 package designed for through-hole mounting.

Feature Summary

• Delivers high-precision voltage regulation with minimal drift over varying thermal conditions
• Operates efficiently with low power consumption suitable for battery-powered systems
• Features robust input voltage tolerance allowing flexibility in power supply design

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Digital-to-analog converter (DAC) voltage standards
• High-resolution measurement instrumentation circuits
• Portable data acquisition systems requiring stable references

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability constraints. Confirm RoHS compliance status and specific lot traceability requirements before procurement. Check for end-of-life notifications or discontinuance alerts as this series may have limited production support. Ensure packaging integrity matches through-hole handling specifications.

Selection Notes

Select this component when a fixed 2.5 V reference with tight initial accuracy is required. Compare against other series variants if different output voltages or package types are needed. Consider the 3 ppm/°C temperature coefficient for applications sensitive to thermal drift. Verify that the 15 mA shunt current capability meets the load requirements of the target circuit design.

Part Context

This part belongs to the MAX281A series of precision voltage references known for their stability and low noise characteristics. It complements other Maxim Integrated signal conditioning components used in industrial and scientific applications. The PDIP-8 package facilitates easy prototyping and integration into legacy through-hole designs.

Replacement Considerations

Consult official cross-reference guides for verified substitute part numbers. Ensure any replacement maintains identical output voltage, accuracy class, and package footprint. Verify thermal performance and current capabilities match the original design specifications.