REF35205QDBVR

Overview

The REF35205QDBVR is a precision series voltage reference from Texas Instruments, delivering a fixed output of 2.048 V. It features an initial accuracy of 0.05% and a temperature coefficient of 12 ppm/°C. The device operates within a supply voltage range up to 6 V and draws a quiescent current of 650 nA. It supports a shutdown function and functions across an extended temperature range from -40°C to +125°C. Packaged in a compact SOT-23-6 surface-mount case, it is designed for high-precision applications requiring low power consumption.

Feature Summary

• Ultra-low quiescent current consumption of 650 nA for energy-efficient operation
• High precision with 0.05% initial accuracy and 12 ppm/°C temperature drift
• Integrated shutdown capability to minimize power usage during idle periods
• Extended industrial temperature range supporting -40°C to +125°C environments

Applications

• Portable battery-powered instrumentation
• Data acquisition systems
• Industrial process control loops
• Medical equipment requiring stable reference voltages

Procurement Notes

Verify the specific suffix QDBVR against the official datasheet to confirm package type and quality grade. Ensure compatibility with AEC-Q100 requirements if automotive qualification is necessary. Check for recent Product Change Notifications regarding manufacturing site or material updates. Confirm moisture sensitivity level handling procedures during assembly. Validate that the 2.048 V output matches the system design specifications before integration.

Selection Notes

Select this component when low power consumption is critical alongside high precision. The 650 nA quiescent current makes it suitable for battery-operated devices. Compare the 12 ppm/°C drift against other options if tighter thermal stability is required. Consider the SOT-23-6 package size constraints relative to PCB layout. Evaluate the need for shutdown functionality versus continuous operation requirements.

Part Context

This part belongs to the REF35 family of precision voltage references from Texas Instruments. The family offers various output voltages and accuracy grades. The REF35205 variant specifically provides a 2.048 V output. It shares common characteristics like low noise and high PSRR with other members of the series. The QDBVR designation indicates the specific package and reel configuration.

Replacement Considerations

Check for direct pin-to-pin replacements within the REF35 series with different output voltages. Verify if older LM4120 variants are obsolete as indicated by EOL notices. Ensure any substitute maintains the 0.05% accuracy and 12 ppm/°C drift specifications. Confirm package compatibility for SOT-23-6 mounting.