REF35120YBHR

Overview

The REF35120YBHR is a nanopower, low-drift, high-precision series voltage reference device from the Texas Instruments REF35 family. It provides a fixed output voltage of 1.2V with an initial accuracy of ±0.05% and a typical quiescent current of 650nA. The temperature coefficient is specified at 10 ppm/°C, ensuring long-term stability with drift of 20ppm over 1000 hours. It operates within an input voltage range of 1.45V to 6V and supports a maximum load current of 10 mA. The device functions across an extended temperature range of -40°C to +125°C and is housed in a compact 4-DSBGA package.

Feature Summary

• Ultra-low power consumption with typical quiescent current of 650nA
• High precision with ±0.05% initial accuracy
• Low temperature drift for enhanced system stability
• Compact surface-mount packaging

Applications

• Battery-powered instrumentation
• Portable medical devices
• Data acquisition systems
• Precision analog-to-digital converter references

Procurement Notes

Verify the specific suffix 'YBHR' corresponds to the required tape-and-reel packaging configuration and temperature grade. Confirm that the 1.2V output variant aligns with circuit design requirements. Ensure compatibility with the 4-DSBGA footprint during PCB layout validation. Cross-reference the datasheet revision date to confirm parameter consistency against current production batches.

Selection Notes

Select this component when ultra-low power budget and high precision are critical constraints. The 650nA quiescent current makes it suitable for battery-operated applications where energy efficiency is paramount. The ±0.05% accuracy ensures minimal calibration overhead in measurement systems. Consider the 4-DSBGA package size if board space is limited compared to larger packages.

Part Context

This part belongs to the REF35 family of nanopower voltage references, designed for applications requiring minimal current draw without sacrificing precision. The family includes various output voltages, with the REF35120YBHR specifically providing a 1.2V output. It complements other TI reference solutions by offering a balance of low power and high accuracy in a small form factor.

Replacement Considerations

Direct substitutes within the same family include REF35125YBHR (1.25V) and REF35250YBHR (2.5V) if voltage levels differ. For different output voltages, consider REF35180YBHR or REF35500YBHR. Verify pinout compatibility and thermal characteristics when substituting with other series references.