REF35125QDBVRQ1

Overview

The REF35125QDBVRQ1 is an automotive-grade series voltage reference from Texas Instruments, designed for high-precision applications. It delivers a fixed output voltage of 1.25 V with an initial accuracy of 0.05%. The device features a low temperature coefficient of 15 PPM/°C and operates within a junction temperature range of -40°C to +125°C. It supports input voltages up to 6 V and draws a quiescent current of 650 nA. Packaged in a compact SOT-23-6 surface-mount case, it meets AEC-Q100 qualification standards for automotive reliability.

Feature Summary

• Automotive-grade qualification ensuring reliability under harsh environmental conditions
• High precision performance with 0.05% initial accuracy and low drift characteristics
• Ultra-low power consumption suitable for battery-operated systems
• Compact SOT-23-6 packaging for space-constrained designs

Applications

• Automotive sensor signal conditioning circuits
• Data acquisition systems requiring stable reference voltages
• Precision analog-to-digital converter (ADC) references
• Medical instrumentation power management

Procurement Notes

Verify the Q1 suffix confirms AEC-Q100 automotive qualification status before integration. Ensure the DBVR package variant matches your PCB footprint requirements. Confirm the specific temperature grade aligns with your system's operational thermal limits. Cross-reference the datasheet revision date to ensure compatibility with latest design guidelines.

Selection Notes

Select this component when automotive reliability and high precision are required simultaneously. The 1.25 V output is ideal for low-voltage ADC references. Consider the 15 PPM/°C drift if operating across wide temperature ranges. Compare against non-automotive REF35125 variants if cost is critical and automotive certification is not mandatory.

Part Context

Part of the REF35 family of precision voltage references, offering various output voltages and accuracy grades. The Q1 designation specifically denotes automotive qualification, distinguishing it from commercial or industrial grade counterparts within the same electrical specification family.

Replacement Considerations

REF35125QDBVR is the non-automotive equivalent with identical electrical specifications but lacks AEC-Q100 certification.