REF35120QDBVR

Overview

The REF35120QDBVR is a high-precision series voltage reference from the Texas Instruments REF35 family, housed in an SOT-23-6 package. It provides a fixed output voltage of 1.024 V with an initial accuracy of ±0.05% and a temperature coefficient of 12 ppm/°C. The device operates within a junction temperature range of -40°C to +125°C and features ultra-low quiescent current of 650 nA typical. It supports up to 10 mA load current, exhibits low noise of 3.3 µVp-p, and includes a shutdown function for power management.

Feature Summary

• Ultra-low quiescent current consumption for battery-powered applications
• High precision with tight initial accuracy and low temperature drift
• Integrated shutdown control for enhanced power efficiency
• Low noise performance suitable for sensitive analog circuits

Applications

• Precision sensor signal conditioning
• 12-bit to 16-bit data converter references
• Portable instrumentation requiring low power
• Medical devices with strict accuracy requirements

Procurement Notes

Verify the Q suffix indicates automotive qualification status per official datasheet. Confirm SOT-23-6 pinout compatibility with target PCB footprint. Ensure operating temperature range meets system environmental specifications. Check humidity sensitivity level for reflow soldering process compliance. Validate that 1.024 V output aligns with ADC or DAC reference input requirements.

Selection Notes

Select this component when fixed 1.024 V reference is required with minimal power draw. Consider the ±0.05% accuracy for high-resolution measurement systems. Evaluate the 12 ppm/°C drift against thermal environment stability needs. Compare load regulation and noise specs against downstream circuit sensitivity. Verify shutdown functionality integration with system power sequencing.

Part Context

Part of the REF35 family offering ultra-low power and high precision. Designed as a drop-in replacement for legacy references in space-constrained designs. Provides stable reference for mixed-signal systems where power and accuracy are critical constraints.

Replacement Considerations

Check REF35120DBVR for non-automotive grade equivalent. Verify REF35125QDBVR if 1.25 V output is acceptable alternative.