TL4051AQDBZR

Overview

The TL4051AQDBZR is a precision micropower shunt voltage reference manufactured by Texas Instruments. It operates within an input voltage range of up to 15 V and provides a stable output voltage between 1.212 V and 10 V. The device features an initial accuracy of 0.1% and a temperature coefficient of 20 ppm/°C. It supports a maximum shunt current of 12 mA and functions reliably across a temperature range from -40°C to +125°C. Packaged in a compact SOT-23-3 surface-mount format, it is designed for high-stability applications requiring low power consumption.

Feature Summary

• Provides adjustable output voltage selection via external resistors
• Maintains stability under all capacitive load conditions without external capacitors
• Delivers low dynamic impedance and reduced noise performance

Applications

• Data acquisition systems
• Power supply monitoring circuits
• Precision instrumentation and test equipment
• Process control systems

Procurement Notes

Verify the specific suffix 'G4' against official documentation to confirm RoHS compliance status, as datasheets may list variations. Confirm the exact operating temperature grade matches the design requirements, as the 'Q' designation indicates extended temperature capabilities. Ensure the selected package variant aligns with the PCB footprint specifications before finalizing procurement orders.

Selection Notes

Select this component when circuit designs demand high initial accuracy combined with low temperature drift in a minimal footprint. The adjustable output capability allows flexibility for various reference voltage needs. Consider the micropower characteristics for battery-operated applications where minimizing quiescent current is critical for extending operational life.

Part Context

This part belongs to the TL4051A series of precision voltage references. It shares architectural similarities with other shunt regulators but distinguishes itself through its specific A-grade tolerance and extended temperature rating. The family offers fixed and adjustable options, catering to diverse precision analog signal conditioning requirements in industrial and automotive environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.