LM4040B41IDBZT

Overview

The LM4040B41IDBZT is a micropower shunt voltage reference from Texas Instruments, providing a fixed output of 4.096 V with an initial accuracy of ±0.2%. It operates within a temperature range of -40°C to +125°C and features a temperature coefficient of 150 ppm/°C. The device supports a maximum shunt current of 15 mA and draws minimal quiescent current. Packaged in a surface-mount SOT-23-3 case, it is designed for precision applications requiring stable voltage references in compact form factors.

Feature Summary

• Micropower operation with low quiescent current consumption suitable for battery-powered systems
• High precision fixed output voltage with tight initial accuracy tolerance
• Wide operating temperature range ensuring stability across industrial environments
• Compact surface-mount packaging for space-constrained circuit designs

Applications

• Portable instrumentation requiring stable reference voltages
• Battery-powered measurement devices
• Data acquisition systems
• Industrial process control loops

Procurement Notes

Verify the specific suffix IDBZT corresponds to the SOT-23-3 package and reel/cut-tape availability. Confirm RoHS compliance status as indicated by manufacturer documentation. Check for any recent PCN updates regarding packaging or material changes. Ensure the ordering part number matches the required accuracy grade and temperature rating for your specific application needs.

Selection Notes

Select this component when a fixed 4.096 V reference with ±0.2% accuracy is required in a small SOT-23-3 package. It is suitable for applications needing low power consumption and wide temperature stability. Compare against other LM4040 variants if different voltage outputs or accuracy grades are needed. Ensure the input voltage exceeds the reference voltage plus necessary headroom for proper regulation.

Part Context

This part belongs to the LM4040 series of micropower shunt voltage references. The series offers various fixed voltage options and accuracy grades. The LM4040B41IDBZT specifically denotes the 4.096 V output version with B-grade accuracy. It is widely used in general-purpose analog circuits where precision and low power are critical design constraints.

Replacement Considerations

LM4040B41IDCKR: Same electrical specifications but in SC-70-5 package. LM4040C41IDBZT: Similar performance with 0.5% accuracy grade. LM4040A41IDBZT: Higher precision option with 0.1% accuracy. Verify pinout compatibility and thermal characteristics when substituting.