REF2925AIDBZT

Overview

The REF2925AIDBZT is a series voltage reference IC manufactured by Texas Instruments, housed in an SOT-23-3 surface-mount package. It provides a fixed output voltage of 2.5 V with an initial accuracy of 2%. The device features a temperature coefficient of 100 ppm/°C and operates within an input voltage range up to 5.5 V. Maximum shunt current is rated at 25 mA, while typical supply current is 42 µA, with a maximum of 50 µA. It functions reliably across a temperature range from -40°C to +125°C.

Feature Summary

• Provides a stable 2.5 V reference output suitable for precision analog circuits
• Operates efficiently with low quiescent current consumption
• Designed for wide industrial temperature environments

Applications

• Data acquisition systems requiring precise voltage references
• Industrial process control instrumentation
• Portable battery-powered measurement devices

Procurement Notes

Verify the specific suffix 'DBZT' corresponds to the cut-tape or reel packaging variant required for your assembly line. Confirm that the 2% initial accuracy meets your system tolerance requirements, as tighter tolerances are available in other REF2925 variants. Ensure the SOT-23-3 footprint matches your PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when a 2.5 V reference is needed with moderate accuracy (2%) and low power consumption. It is appropriate for applications where space is limited due to the SOT-23-3 package. Consider higher precision models if the 100 ppm/°C temperature drift exceeds your design limits.

Part Context

This part belongs to the REF29xx family of low-power, high-precision series voltage references from Texas Instruments. These devices are designed to replace traditional zener diodes in applications requiring better stability and lower noise. The REF2925 specifically targets the 2.5 V output segment of this portfolio.

Replacement Considerations

Direct pin-compatible substitutes within the same package include REF2925AIDBZR. For different accuracy levels, consider REF3025AIDBZT (0.2% accuracy) or REF3125AIDBZT (0.2% accuracy, 20 ppm/°C). Verify thermal and electrical specifications match before substitution.