TL4050B41IDBZT

Overview

The TL4050B41IDBZT is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 4.096 V with an initial accuracy of ±0.2%. The device operates within a temperature range of -40°C to +125°C and features a temperature coefficient of 50 ppm/°C. It is housed in a SOT-23-3 surface-mount package. The maximum shunt current is rated at 15 mA, while the cathode current is specified at 73 µA. Noise performance is characterized at 93 µVrms over the 10 Hz to 10 kHz frequency band.

Feature Summary

• Delivers high-precision voltage regulation with tight initial accuracy tolerances for sensitive analog circuits.
• Operates effectively across extended industrial temperature ranges ensuring stable reference performance.
• Features low power consumption characteristics suitable for battery-powered and portable applications.

Applications

• Portable instrumentation requiring stable voltage references
• Data acquisition systems needing precise analog-to-digital conversion references
• Battery-operated equipment where low quiescent current is critical

Procurement Notes

Verify the specific suffix IDBZT corresponds to the SOT-23-3 package and tape-and-reel or tube configuration as required by your assembly process. Confirm that the Q1 designation is absent, indicating standard commercial/industrial grade rather than automotive qualification. Ensure compatibility with your PCB footprint for the three-terminal SOT-23 outline before ordering.

Selection Notes

Select this component when a 4.096 V reference with ±0.2% accuracy is required in a compact SOT-23-3 package. It is suitable for designs prioritizing low noise and wide temperature stability. Consider alternative packages like SC-70-5 if space constraints differ, or different accuracy grades if cost sensitivity outweighs precision requirements.

Part Context

This part belongs to the TL4050 family of precision micropower shunt voltage references from Texas Instruments. The family includes various output voltages and accuracy grades, such as the TL4050B series which denotes ±0.2% initial accuracy. These devices are designed to replace older zener-based references in modern low-power electronics.

Replacement Considerations

Direct pin-compatible alternatives within the same family include the TL4050B41IDBZR (reel version) or the LM4040BIM3-4.1/NOPB. Verify package dimensions and electrical specifications match exactly before substituting.