REF5025EIDR

Overview

The REF5025EIDR is an enhanced-grade precision voltage reference from Texas Instruments, delivering a fixed output of 2.5V in an 8-pin SOIC package. It features a maximum temperature coefficient of 2.5ppm/°C and initial accuracy of ±0.025%. The device supports a wide input voltage range up to 42V and offers low noise performance of 0.5μVPP/V (0.1Hz to 10Hz). It includes an enable pin for shutdown control and operates within a temperature range of -40°C to 125°C.

Feature Summary

• Enhanced-grade precision with very low temperature drift and high initial accuracy
• Ultra-low flicker noise performance suitable for sensitive analog circuits
• Wide input voltage support enabling operation across diverse power supply conditions
• Integrated enable functionality allowing for controlled shutdown and power management

Applications

• Precision data acquisition systems
• Semiconductor test equipment
• Industrial process controls
• Medical instrumentation
• Pressure and temperature transmitters

Procurement Notes

Verify the specific grade suffix 'E' corresponds to the enhanced specifications required for your design, particularly the 2.5ppm/°C drift and 42V max input rating. Confirm that the SOIC-8 package dimensions match your PCB footprint constraints. Ensure the EN pin is properly biased if shutdown functionality is not utilized in the final application.

Selection Notes

Select this component when superior long-term stability and minimal noise are critical compared to standard or high-grade alternatives. The enhanced grade provides tighter tolerances than the REF5025IDR or REF5025AIDR. Consider the wider input voltage capability if system line regulation requirements exceed standard limits.

Part Context

This part belongs to the REF50xx family of low-noise, very low drift precision voltage references. The REF5025EIDR represents the enhanced grade variant, distinguished by its superior electrical characteristics over the high-grade (REF50xxI) and standard-grade (REF50xxAI) counterparts within the same product line.

Replacement Considerations

Direct functional substitutes include REF5025IDR and REF5025AIDR, though they offer lower accuracy and higher drift. For upgraded performance, consider REF5045EIDR if a different voltage level is acceptable.