REF3025AIDBZRG4

Overview

The REF3025AIDBZRG4 is a precision series voltage reference from Texas Instruments, delivering a fixed output of 2.5 V with an initial accuracy of 0.2%. It operates within an extended industrial temperature range of -40°C to +125°C and features a maximum temperature coefficient of 75 ppm/°C. The device supports a maximum input voltage of 5.5 V and provides a maximum shunt current of 25 mA. Typical quiescent current is 42 µA, with a maximum supply current of 50 µA. It is housed in a compact SOT-23-3 surface-mount package.

Feature Summary

• Provides stable 2.5 V reference output with high initial accuracy
• Operates reliably across extended industrial temperature ranges
• Enables low-power designs through minimal quiescent current consumption
• Supports loop-powered applications without requiring load capacitors for stability

Applications

• Temperature and pressure transmitters
• Portable instrumentation devices
• Signal processing circuits
• Medical equipment power management

Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's latest documentation to confirm compliance status and availability. Confirm that the SOT-23-3 package dimensions match your PCB footprint requirements. Ensure the 5.5 V maximum input voltage rating aligns with your system supply rails. Check for any obsolescence notices or lifecycle changes directly from Texas Instruments before finalizing procurement plans.

Selection Notes

Select this component when a precise 2.5 V reference is required in space-constrained designs. It is suitable for applications demanding low static current to extend battery life. Verify that the 75 ppm/°C drift specification meets your system's thermal stability needs. Consider the 25 mA output capability if driving moderate loads directly.

Part Context

This part belongs to the REF30xx family of bandgap voltage references designed for general-purpose precision applications. It shares the same pinout and form factor as other variants in the series, such as the REF3020 and REF3033, allowing for potential design flexibility within the same package constraint while maintaining consistent performance characteristics.

Replacement Considerations

The REF3025AIDBZR is a compatible alternative within the same series. Verify that the non-G4 suffix does not introduce differences in RoHS compliance or packaging specifications. Ensure the electrical parameters remain identical for direct substitution.