LM4040B41IDBZR

Overview

The LM4040B41IDBZR is a micropower shunt voltage reference from Texas Instruments, providing a fixed output of 4.096 V. It features an initial accuracy of ±0.2% and operates within a temperature range of -40°C to +125°C. The device has a maximum shunt current of 15 mA and a minimum operating current of 68 µA. It utilizes a SOT-23-3 surface-mount package.

Feature Summary

• Provides stable precision voltage reference with high initial accuracy
• Operates over extended industrial temperature range
• Designed for low power consumption applications

Applications

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

Procurement Notes

Verify the specific suffix IDBZR indicates tape-and-reel packaging when ordering. Confirm the B grade corresponds to the required 0.2% accuracy specification for your design. Ensure the SOT-23-3 footprint matches your PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when a 4.096 V reference with tighter tolerance than standard grades is needed. The wide temperature range supports harsh environments. Compare against LM4040C41IDBZR if lower cost is prioritized over the 0.2% accuracy requirement.

Part Context

This part belongs to the LM4040 series of micropower shunt references. It shares the same form factor as other variants but offers superior accuracy compared to C-grade parts. It serves as a compact solution for precision analog circuits requiring minimal quiescent current.

Replacement Considerations

LM4040B41IDBZT is available in cut-tape packaging instead of reel. LM4040C41IDBZR offers similar functionality with 0.5% accuracy. TL4050B41IDBZR provides improved temperature coefficient performance.