REF2940AIDBZRG4

Overview

The REF2940AIDBZRG4 is a series voltage reference from Texas Instruments, providing a fixed output of 4.096 V. It features an initial accuracy of 2% and a temperature coefficient of 100 ppm/°C. The device operates with a maximum supply current of 50 µA and supports a maximum input voltage of 5.5 V. It accommodates a maximum shunt current of 25 mA and functions within a temperature range of -40°C to +125°C. The component is housed in a SOT-23-3 package.

Feature Summary

• Provides a stable 4.096 V reference voltage suitable for precision applications
• Operates with low power consumption of up to 50 µA supply current
• Designed for wide industrial temperature operation from -40°C to +125°C

Applications

• Portable instrumentation requiring low power references
• Battery-powered measurement systems
• Data acquisition systems needing stable voltage sources

Procurement Notes

Verify the specific suffix RG4 for reel packaging configuration. Confirm RoHS compliance status through official documentation. Check current lifecycle status as the part may be discontinued or subject to obsolescence notices. Ensure the SOT-23-3 package matches the target PCB footprint requirements before procurement.

Selection Notes

Select this component when a fixed 4.096 V output is required with moderate accuracy. Consider the 100 ppm/°C temperature coefficient for thermal stability needs. Evaluate the 50 µA quiescent current against system power budgets. Verify that the 25 mA shunt current capability meets load requirements.

Part Context

This part belongs to the REF2940 series of series voltage references manufactured by Texas Instruments. It is categorized under PMIC - Power Management ICs. The device is designed to offer a compact solution for voltage referencing in space-constrained designs using the SOT-23-3 package.

Replacement Considerations

Check for direct substitutes within the REF2940 family with different output voltages or accuracies. Verify pin compatibility if replacing with other SOT-23-3 voltage references. Consult Texas Instruments documentation for updated replacement recommendations due to potential discontinuation.