TL4051A12IDBZTG4

Overview

The TL4051A12IDBZTG4 is a micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 1.225V with an initial accuracy of ±0.1%. The device operates within a temperature range of -40°C to 85°C and features a low temperature coefficient of 50ppm/°C. It requires a minimum cathode current of 65µA and supports a maximum load current of 12mA. The component is housed in a compact SOT-23-3 package, ensuring stability across all capacitive loads without the need for external output capacitors.

Feature Summary

• Provides a fixed 1.225V output with high precision ±0.1% initial tolerance
• Operates stably under all capacitive load conditions without requiring external output capacitors
• Features low dynamic impedance and low noise characteristics for stable performance
• Designed for micropower applications with a typical operating current of 65µA

Applications

• Data acquisition systems
• Portable battery-powered equipment
• Precision measurement instruments
• Process control systems

Procurement Notes

Verify that the ordering suffix 'G4' confirms compliance with RoHS directives and lead-free manufacturing specifications as per Texas Instruments standards. Ensure the procurement channel sources genuine components from authorized distributors to guarantee authenticity and traceability. Confirm that the specific batch matches the required industrial temperature range and packaging format for your assembly process.

Selection Notes

Select this component when a fixed 1.225V reference with high precision (±0.1%) is required in a space-constrained design. It is suitable for applications demanding low power consumption and stability across varying capacitive loads. Consider the SOT-23-3 package size and the -40°C to 85°C operating temperature range to ensure compatibility with your system's thermal and physical constraints.

Part Context

This part belongs to the TL4051 family of micropower shunt voltage references from Texas Instruments. The family offers various output voltages and accuracy grades, including adjustable options. The TL4051 series is designed to replace older reference technologies in portable and battery-operated devices, providing improved accuracy and lower power consumption in a small footprint.

Replacement Considerations

Check for direct substitutes such as the TL4051A12IDBZR or TL4051A12QDBZR, which share similar electrical characteristics but may differ in temperature rating or packaging suffixes. Verify pinout compatibility and ensure that any alternative meets the specific ±0.1% accuracy and 1.225V output requirements.