TL4051C12IDBZR

Overview

The TL4051C12IDBZR is a micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 1.225V with an initial accuracy tolerance of ±0.5%. The device operates within a temperature range of -40°C to +85°C and features a maximum temperature coefficient of 50ppm/°C. It requires a minimum operating current of 60µA (typical) and supports a maximum cathode current of 12mA. The component is housed in a space-saving SOT-23-3 package.

Feature Summary

• Provides a fixed 1.225V output or adjustable configuration via external resistors
• Operates stably across all capacitive load conditions without requiring output capacitors
• Features low dynamic impedance, noise, and temperature coefficient for stable performance
• Designed for micropower applications with a typical quiescent current of 60µA

Applications

• Data acquisition systems
• Power supply monitoring circuits
• Battery-powered equipment
• Precision audio applications

Procurement Notes

Verify the specific suffix IDBZR corresponds to the SOT-23-3 surface-mount package and standard industrial temperature range (-40°C to +85°C). Confirm that the C-grade designation aligns with the required ±0.5% initial accuracy tolerance for your design specifications. Ensure compatibility with the intended input voltage and current requirements before procurement.

Selection Notes

Select this component when a fixed 1.225V reference with ±0.5% accuracy is sufficient. It is suitable for designs prioritizing low power consumption and stability under varying capacitive loads. Consider alternative grades if tighter tolerance or extended temperature ranges are required.

Part Context

This part belongs to the TL4051 family of micropower shunt voltage references from Texas Instruments. The family offers various accuracy grades and output options to balance cost and performance. The TL4051 series is designed to replace traditional zener diodes in precision applications requiring better stability and lower noise.

Replacement Considerations

Compatible substitutes include other TL4051 variants such as TL4051A12IDBZR or TL4051B12IDBZR, depending on required accuracy. LM4041B12IDBZR is also a comparable option with similar form factor but different accuracy specifications.