REF3140AIDBZTG4

Overview

The REF3140AIDBZTG4 is a series voltage reference from Texas Instruments, housed in an SOT-23-3 package. It provides a fixed output voltage of 4.096 V with an initial accuracy of 0.2%. The device features a temperature coefficient of 20 ppm/°C and operates within an input voltage range up to 5.5 V. It draws a maximum supply current of 100 uA and supports a maximum shunt current of 10 mA. The component functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Series topology for stable voltage regulation
• Low power consumption suitable for battery applications
• High precision with low temperature drift

Applications

• Portable instrumentation
• Battery-powered systems
• Data acquisition systems

Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's latest documentation to confirm RoHS compliance status and lead time requirements. Confirm that the SOT-23-3 package matches the target PCB footprint. Check for any recent Product Change Notifications (PCN) regarding material or manufacturing site changes before finalizing procurement plans.

Selection Notes

Select this component when a 4.096 V reference with high stability (20 ppm/°C) is required in a compact SOT-23-3 form factor. Ensure the application budget allows for the 100 uA quiescent current. Compare against the REF3040 if lower cost is prioritized over tighter drift specifications, or the REF5040 if higher precision is needed despite larger packaging.

Part Context

This part belongs to the REF31xx family of micropower voltage references designed for space-constrained applications. It serves as a successor to older generation references, offering improved thermal performance while maintaining compatibility with standard surface-mount assembly processes used in modern electronic manufacturing.

Replacement Considerations

The REF3040AIDBZTG4 is listed as a discontinued alternative. Verify pinout compatibility and electrical parameter differences before substitution.